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Mechanics"]}" data-trace="false" data-dom-id="Pill-react-component-8e596643-6fbf-4083-b900-b6c3748f1340"></div> <div id="Pill-react-component-8e596643-6fbf-4083-b900-b6c3748f1340"></div> </a></div></div></div></div><div class="right-panel-container"><div class="user-content-wrapper"><div class="uploads-container" id="social-redesign-work-container"><div class="upload-header"><h2 class="ds2-5-heading-sans-serif-xs">Uploads</h2></div><div class="documents-container backbone-social-profile-documents" style="width: 100%;"><div class="u-taCenter"></div><div class="profile--tab_content_container js-tab-pane tab-pane active" id="all"><div class="profile--tab_heading_container js-section-heading" data-section="Papers" id="Papers"><h3 class="profile--tab_heading_container">Papers by JAOUAD SMILY</h3></div><div class="js-work-strip profile--work_container" data-work-id="113899162"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/113899162/Study_of_pipe_flows_around_an_obstacle_with_Lattice_Boltzmann_Method"><img alt="Research paper thumbnail of Study of pipe flows around an obstacle with Lattice-Boltzmann Method" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/113899162/Study_of_pipe_flows_around_an_obstacle_with_Lattice_Boltzmann_Method">Study of pipe flows around an obstacle with Lattice-Boltzmann Method</a></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Fluid mechanics describes the physical phenomena of fluids which are often governed by partial de...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Fluid mechanics describes the physical phenomena of fluids which are often governed by partial derivative equations namely the continuity equation and the Navier-Stokes equation. The resolution of these equations using conventional methods encounters certain difficulties when it comes to dealing with problems where the geometry of the medium is complex or when there are several phases of a fluid or several fluids [TAO 16]. The current trend is towards a new approach to simulation research [CFD], which has gained a lot of popularity in recent years, it is called in English &quot;Lattice Boltzmann Method&quot; (LBM), which is a relatively new development in the Computational fluid dynamics [CFD]. The lattice Boltzmann method is a method of fluid dynamics (CFD). Instead of the Navier-Stokes equations, the Boltzmann discrete equation is solved to simulate the behavior of fluids using a collision-propagation scheme. In this work, the LBM was integrated in a python code in order to simulate in 2D the behavior of a pipe flow against an obstacle, which will be used later to determine in the pipes the most solicited zones (maximum velocity and maximum pressure) to better size both the pipe and its accessories (valve, etc.) and prevent their rapid degradation.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="113899162"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="113899162"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 113899162; 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dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "-1" } } $('.js-work-strip[data-work-id=113899162]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":113899162,"title":"Study of pipe flows around an obstacle with Lattice-Boltzmann Method","internal_url":"https://www.academia.edu/113899162/Study_of_pipe_flows_around_an_obstacle_with_Lattice_Boltzmann_Method","owner_id":252468201,"coauthors_can_edit":true,"owner":{"id":252468201,"first_name":"JAOUAD","middle_initials":null,"last_name":"SMILY","page_name":"JAOUADSMILY","domain_name":"independent","created_at":"2023-01-08T12:01:25.996-08:00","display_name":"JAOUAD SMILY","url":"https://independent.academia.edu/JAOUADSMILY"},"attachments":[]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="113899161"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/113899161/Analyse_de_fiabilit%C3%A9_d_une_pale_d_%C3%A9olienne"><img alt="Research paper thumbnail of Analyse de fiabilité d’une pale d’éolienne" class="work-thumbnail" src="https://attachments.academia-assets.com/110740501/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/113899161/Analyse_de_fiabilit%C3%A9_d_une_pale_d_%C3%A9olienne">Analyse de fiabilité d’une pale d’éolienne</a></div><div class="wp-workCard_item"><span>Incertitudes et fiabilité des systèmes multiphysiques =</span><span>, 2022</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Dans le cadre du développement durable, face au double défi planétaire posé par l'épuisement immi...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Dans le cadre du développement durable, face au double défi planétaire posé par l'épuisement imminent des ressources énergétiques fossiles et l'impact négatif de ces dernières sur l'environnement, l'utilisation des énergies renouvelables devient une bonne alternative. Aujourd'hui, l'installation de parcs éoliens dans le monde entier est en plein essor, et la recherche aérodynamique sur les éoliennes est hautement spécialisée. Grâce à la dynamique des fluides numérique (CFD), il est possible d'évaluer l'influence des charges sur les performances aérodynamiques de l'éolienne. Pour améliorer ses performances et sa fiabilité, une bonne modélisation de l'écoulement de l'air autour de l'éolienne est très importante. Dans cet article, l'étude est divisée en trois parties : Premièrement, l'étude aérodynamique de la pale a été réalisée avec ANSYS CFX. Deuxièmement, l'analyse modale en mode précontraint a été effectuée pour trouver les fréquences naturelles de la pale avec ANSYS MECHANICAL. La dernière partie est consacrée à l'étude de fiabilité de la pale de l'éolienne avec les méthodes FORM et SORM développées avec un code MATLAB. ABSTRACT. In the context of sustainable development, faced with the dual global challenge of the imminent depletion of fossil energy resources and the negative impact of fossil fuels on the environment, the use of renewable energy is becoming a good alternative. Today, the installation of wind farms around the world is booming, and aerodynamic research on wind turbines is highly specialized. Using Computational Fluid Dynamics (CFD), it is possible to assess the influence of loads on the aerodynamic performance of the wind turbine. To improve its performance and reliability, a good modelling of the airflow around the turbine is very important. In this paper, the study is divided into three parts: Firstly, the aerodynamic study of the blade was carried out with ANSYS CFX. Secondly, the modal analysis in prestressed mode was performed to find the natural frequencies of the blade with ANSYS MECHANICAL. The last part is devoted to the study of the reliability of the wind turbine blade with FORM and SORM methods developed with a MATLAB code. MOTS-CLÉS. Énergie éolienne, ANSYS, Fiabilité, FORM SORM.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="be24d7be2f35418112c2369db25a3b28" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":110740501,"asset_id":113899161,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/110740501/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="113899161"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="113899161"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 113899161; 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</script> <div class="js-work-strip profile--work_container" data-work-id="113899158"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/113899158/Probabilistic_study_of_S809_airfoil_for_wind_turbine_blade"><img alt="Research paper thumbnail of Probabilistic study of S809 airfoil for wind turbine blade" class="work-thumbnail" src="https://attachments.academia-assets.com/110740500/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/113899158/Probabilistic_study_of_S809_airfoil_for_wind_turbine_blade">Probabilistic study of S809 airfoil for wind turbine blade</a></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Wind power is one of the oldest sources used by mankind. Today, with the negative impact of fossi...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Wind power is one of the oldest sources used by mankind. Today, with the negative impact of fossil fuels on the environment, the installation of wind farms around the world is booming. To improve its performance and reliability, good modeling of the air flow around a wind turbine blade profile is very decisive by introducing random parameters relating to the fluid. In this article, we first present the validation of the numerical simulation of the S809 airfoil carried out with ANSYS CFX by comparing the pressure coefficients, calculated for different turbulence models, with experimental data. Next, we introduce the uncertainties, using a probabilistic approach, to determine the influence of the input variables on the aerodynamic output coefficients.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="4eceaaf67d9936a1fc9c8bcde90b6d98" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":110740500,"asset_id":113899158,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/110740500/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="113899158"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="113899158"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 113899158; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="113899157"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/113899157/Study_of_pipe_flows_around_an_obstacle_with_Lattice_Boltzmann_Method"><img alt="Research paper thumbnail of Study of pipe flows around an obstacle with Lattice-Boltzmann Method" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/113899157/Study_of_pipe_flows_around_an_obstacle_with_Lattice_Boltzmann_Method">Study of pipe flows around an obstacle with Lattice-Boltzmann Method</a></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Fluid mechanics describes the physical phenomena of fluids which are often governed by partial de...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Fluid mechanics describes the physical phenomena of fluids which are often governed by partial derivative equations namely the continuity equation and the Navier-Stokes equation. The resolution of these equations using conventional methods encounters certain difficulties when it comes to dealing with problems where the geometry of the medium is complex or when there are several phases of a fluid or several fluids [TAO 16]. The current trend is towards a new approach to simulation research [CFD], which has gained a lot of popularity in recent years, it is called in English &quot;Lattice Boltzmann Method&quot; (LBM), which is a relatively new development in the Computational fluid dynamics [CFD]. The lattice Boltzmann method is a method of fluid dynamics (CFD). Instead of the Navier-Stokes equations, the Boltzmann discrete equation is solved to simulate the behavior of fluids using a collision-propagation scheme. In this work, the LBM was integrated in a python code in order to simula...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="113899157"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="113899157"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 113899157; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=113899157]").text(description); $(".js-view-count[data-work-id=113899157]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 113899157; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='113899157']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (false){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "-1" } } $('.js-work-strip[data-work-id=113899157]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":113899157,"title":"Study of pipe flows around an obstacle with Lattice-Boltzmann Method","internal_url":"https://www.academia.edu/113899157/Study_of_pipe_flows_around_an_obstacle_with_Lattice_Boltzmann_Method","owner_id":252468201,"coauthors_can_edit":true,"owner":{"id":252468201,"first_name":"JAOUAD","middle_initials":null,"last_name":"SMILY","page_name":"JAOUADSMILY","domain_name":"independent","created_at":"2023-01-08T12:01:25.996-08:00","display_name":"JAOUAD SMILY","url":"https://independent.academia.edu/JAOUADSMILY"},"attachments":[]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="113899156"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/113899156/Simulation_num%C3%A9rique_et_validation_exp%C3%A9rimentale_de_l_%C3%A9coulement_d_air_autour_d_un_profil_de_pale_d_%C3%A9olienne_de_type_S809"><img alt="Research paper thumbnail of Simulation numérique et validation expérimentale de l’écoulement d’air autour d’un profil de pale d’éolienne de type S809" class="work-thumbnail" src="https://attachments.academia-assets.com/110740515/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/113899156/Simulation_num%C3%A9rique_et_validation_exp%C3%A9rimentale_de_l_%C3%A9coulement_d_air_autour_d_un_profil_de_pale_d_%C3%A9olienne_de_type_S809">Simulation numérique et validation expérimentale de l’écoulement d’air autour d’un profil de pale d’éolienne de type S809</a></div><div class="wp-workCard_item"><span>Incertitudes et fiabilité des systèmes multiphysiques</span><span>, 2020</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">L'énergie éolienne est l'une des plus anciennes sources d'énergie utilisées par l'humanité. Aujou...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">L'énergie éolienne est l'une des plus anciennes sources d'énergie utilisées par l'humanité. Aujourd'hui avec l'impact négatif de l'énergie fossile sur l'environnement, l'installation des parcs éoliens partout dans le monde connait un essor considérable. Pour améliorer sa performance et sa fiabilité, une bonne modélisation de l'écoulement d'air autour d'un profil de pale d'éolienne est très déterminante. Dans cet article une simulation numérique du profil aérodynamique S809 a été réalisé par ANSYS CFX en utilisant plusieurs modèles de turbulence et à différents angles d'attaque. Par la suite les coefficients de pression calculés sont comparés à des données expérimentales pour valider la précision de la simulation et choisir le modèle de turbulence adéquat. ABSTRACT. Wind energy is one of the oldest sources of energy used by mankind. Today with the negative impact of fossil energy on the environment, the installation of wind farms all over the world is experiencing a considerable boom. To improve its performance and reliability, good modeling of the air flow around a wind turbine blade profile is very decisive. In this article, a numerical simulation of the S809 aerodynamic profile was performed by ANSYS CFX using several models of turbulence and at different angles of attack. Subsequently the calculated pressure coefficients are compared with experimental data to validate the simulation accuracy and choose the appropriate turbulence model.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="603bdefc67515a795d291336d0418248" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":110740515,"asset_id":113899156,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/110740515/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="113899156"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="113899156"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 113899156; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="113899155"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/113899155/Etude_des_%C3%A9coulements_en_charge_autour_d_un_obstacle_par_la_m%C3%A9thode_de_Lattice_Boltzmann"><img alt="Research paper thumbnail of Etude des écoulements en charge autour d’un obstacle par la méthode de Lattice-Boltzmann" class="work-thumbnail" src="https://attachments.academia-assets.com/110740514/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/113899155/Etude_des_%C3%A9coulements_en_charge_autour_d_un_obstacle_par_la_m%C3%A9thode_de_Lattice_Boltzmann">Etude des écoulements en charge autour d’un obstacle par la méthode de Lattice-Boltzmann</a></div><div class="wp-workCard_item"><span>Incertitudes et fiabilité des systèmes multiphysiques</span><span>, 2019</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">La mécanique des fluides décrit des phénomènes physiques des fluides qui sont souvent gouvernés p...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">La mécanique des fluides décrit des phénomènes physiques des fluides qui sont souvent gouvernés par des équations de type dérivées partielles à savoir l'équation de continuité et l'équation de Navier-Stokes. La résolution de ces équations en utilisant des méthodes classiques rencontre certaines difficultés lorsqu'il s'agit de traiter des problèmes où la géométrie du milieu est complexe ou lorsqu'on se trouve en présence de plusieurs phases d'un fluide ou de plusieurs fluides [TAO 16]. La tendance actuelle s'oriente vers une nouvelle approche pour la recherche en simulation [CFD], qui a gagné beaucoup de popularité ces dernières années, elle est appelée en anglais « Lattice Boltzmann Method » (LBM), qui est un développement relativement nouveau dans la CFD. La méthode de Lattice-Boltzmann est une méthode de dynamique des fluides (CFD). À la place des équations de Navier-Stokes, l'équation discrète de Boltzmann est résolue pour simuler le comportement de fluides à l'aide d'un schéma de collision-propagation. Dans ce travail, on a intégré la LBM dans un code python afin de simuler en 2D le comportement d'un fluide en charge à l'encontre d'un obstacle, chose qui va nous servir par la suite à déterminer dans les conduites les zones les plus sollicités (vitesse maximale et pression maximale) pour mieux dimensionner à la fois la conduite et ses accessoires (vanne, clapet, etc.) et éviter leur dégradation rapide. ABSTRACT. Fluid mechanics describes the physical phenomena of fluids which are often governed by partial derivative equations namely the continuity equation and the Navier-Stokes equation. The resolution of these equations using conventional methods encounters certain difficulties when it comes to dealing with problems where the geometry of the medium is complex or when there are several phases of a fluid or several fluids [TAO 16]. The current trend is towards a new approach to simulation research [CFD], which has gained a lot of popularity in recent years, it is called in English "Lattice Boltzmann Method" (LBM), which is a relatively new development in the Computational fluid dynamics [CFD]. The lattice Boltzmann method is a method of fluid dynamics (CFD). Instead of the Navier-Stokes equations, the Boltzmann discrete equation is solved to simulate the behavior of fluids using a collision-propagation scheme. In this work, the LBM was integrated in a python code in order to simulate in 2D the behavior of a pipe flow against an obstacle, which will be used later to determine in the pipes the most solicited zones (maximum velocity and maximum pressure) to better size both the pipe and its accessories (valve, etc.) and prevent their rapid degradation. MOTS-CLÉS. Ecoulement en charge, Simulation,</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="731019c65ee73055285df9172ab9936a" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":110740514,"asset_id":113899155,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/110740514/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="113899155"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="113899155"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 113899155; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="113899150"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/113899150/Reliability_Analysis_of_a_Wind_Turbine_Blade"><img alt="Research paper thumbnail of Reliability Analysis of a Wind Turbine Blade" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/113899150/Reliability_Analysis_of_a_Wind_Turbine_Blade">Reliability Analysis of a Wind Turbine Blade</a></div><div class="wp-workCard_item"><span>International Review on Modelling and Simulations</span><span>, Oct 31, 2022</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="113899150"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="113899150"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 113899150; 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dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "-1" } } $('.js-work-strip[data-work-id=113899150]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":113899150,"title":"Reliability Analysis of a Wind Turbine Blade","internal_url":"https://www.academia.edu/113899150/Reliability_Analysis_of_a_Wind_Turbine_Blade","owner_id":252468201,"coauthors_can_edit":true,"owner":{"id":252468201,"first_name":"JAOUAD","middle_initials":null,"last_name":"SMILY","page_name":"JAOUADSMILY","domain_name":"independent","created_at":"2023-01-08T12:01:25.996-08:00","display_name":"JAOUAD SMILY","url":"https://independent.academia.edu/JAOUADSMILY"},"attachments":[]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> </div><div class="profile--tab_content_container js-tab-pane tab-pane" data-section-id="19144950" id="papers"><div class="js-work-strip profile--work_container" data-work-id="113899162"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/113899162/Study_of_pipe_flows_around_an_obstacle_with_Lattice_Boltzmann_Method"><img alt="Research paper thumbnail of Study of pipe flows around an obstacle with Lattice-Boltzmann Method" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/113899162/Study_of_pipe_flows_around_an_obstacle_with_Lattice_Boltzmann_Method">Study of pipe flows around an obstacle with Lattice-Boltzmann Method</a></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Fluid mechanics describes the physical phenomena of fluids which are often governed by partial de...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Fluid mechanics describes the physical phenomena of fluids which are often governed by partial derivative equations namely the continuity equation and the Navier-Stokes equation. The resolution of these equations using conventional methods encounters certain difficulties when it comes to dealing with problems where the geometry of the medium is complex or when there are several phases of a fluid or several fluids [TAO 16]. The current trend is towards a new approach to simulation research [CFD], which has gained a lot of popularity in recent years, it is called in English &quot;Lattice Boltzmann Method&quot; (LBM), which is a relatively new development in the Computational fluid dynamics [CFD]. The lattice Boltzmann method is a method of fluid dynamics (CFD). Instead of the Navier-Stokes equations, the Boltzmann discrete equation is solved to simulate the behavior of fluids using a collision-propagation scheme. In this work, the LBM was integrated in a python code in order to simulate in 2D the behavior of a pipe flow against an obstacle, which will be used later to determine in the pipes the most solicited zones (maximum velocity and maximum pressure) to better size both the pipe and its accessories (valve, etc.) and prevent their rapid degradation.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="113899162"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="113899162"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 113899162; 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dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "-1" } } $('.js-work-strip[data-work-id=113899162]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":113899162,"title":"Study of pipe flows around an obstacle with Lattice-Boltzmann Method","internal_url":"https://www.academia.edu/113899162/Study_of_pipe_flows_around_an_obstacle_with_Lattice_Boltzmann_Method","owner_id":252468201,"coauthors_can_edit":true,"owner":{"id":252468201,"first_name":"JAOUAD","middle_initials":null,"last_name":"SMILY","page_name":"JAOUADSMILY","domain_name":"independent","created_at":"2023-01-08T12:01:25.996-08:00","display_name":"JAOUAD SMILY","url":"https://independent.academia.edu/JAOUADSMILY"},"attachments":[]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="113899161"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/113899161/Analyse_de_fiabilit%C3%A9_d_une_pale_d_%C3%A9olienne"><img alt="Research paper thumbnail of Analyse de fiabilité d’une pale d’éolienne" class="work-thumbnail" src="https://attachments.academia-assets.com/110740501/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/113899161/Analyse_de_fiabilit%C3%A9_d_une_pale_d_%C3%A9olienne">Analyse de fiabilité d’une pale d’éolienne</a></div><div class="wp-workCard_item"><span>Incertitudes et fiabilité des systèmes multiphysiques =</span><span>, 2022</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Dans le cadre du développement durable, face au double défi planétaire posé par l'épuisement immi...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Dans le cadre du développement durable, face au double défi planétaire posé par l'épuisement imminent des ressources énergétiques fossiles et l'impact négatif de ces dernières sur l'environnement, l'utilisation des énergies renouvelables devient une bonne alternative. Aujourd'hui, l'installation de parcs éoliens dans le monde entier est en plein essor, et la recherche aérodynamique sur les éoliennes est hautement spécialisée. Grâce à la dynamique des fluides numérique (CFD), il est possible d'évaluer l'influence des charges sur les performances aérodynamiques de l'éolienne. Pour améliorer ses performances et sa fiabilité, une bonne modélisation de l'écoulement de l'air autour de l'éolienne est très importante. Dans cet article, l'étude est divisée en trois parties : Premièrement, l'étude aérodynamique de la pale a été réalisée avec ANSYS CFX. Deuxièmement, l'analyse modale en mode précontraint a été effectuée pour trouver les fréquences naturelles de la pale avec ANSYS MECHANICAL. La dernière partie est consacrée à l'étude de fiabilité de la pale de l'éolienne avec les méthodes FORM et SORM développées avec un code MATLAB. ABSTRACT. In the context of sustainable development, faced with the dual global challenge of the imminent depletion of fossil energy resources and the negative impact of fossil fuels on the environment, the use of renewable energy is becoming a good alternative. Today, the installation of wind farms around the world is booming, and aerodynamic research on wind turbines is highly specialized. Using Computational Fluid Dynamics (CFD), it is possible to assess the influence of loads on the aerodynamic performance of the wind turbine. To improve its performance and reliability, a good modelling of the airflow around the turbine is very important. In this paper, the study is divided into three parts: Firstly, the aerodynamic study of the blade was carried out with ANSYS CFX. Secondly, the modal analysis in prestressed mode was performed to find the natural frequencies of the blade with ANSYS MECHANICAL. The last part is devoted to the study of the reliability of the wind turbine blade with FORM and SORM methods developed with a MATLAB code. MOTS-CLÉS. Énergie éolienne, ANSYS, Fiabilité, FORM SORM.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="be24d7be2f35418112c2369db25a3b28" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":110740501,"asset_id":113899161,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/110740501/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="113899161"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="113899161"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 113899161; 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</script> <div class="js-work-strip profile--work_container" data-work-id="113899158"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/113899158/Probabilistic_study_of_S809_airfoil_for_wind_turbine_blade"><img alt="Research paper thumbnail of Probabilistic study of S809 airfoil for wind turbine blade" class="work-thumbnail" src="https://attachments.academia-assets.com/110740500/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/113899158/Probabilistic_study_of_S809_airfoil_for_wind_turbine_blade">Probabilistic study of S809 airfoil for wind turbine blade</a></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Wind power is one of the oldest sources used by mankind. Today, with the negative impact of fossi...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Wind power is one of the oldest sources used by mankind. Today, with the negative impact of fossil fuels on the environment, the installation of wind farms around the world is booming. To improve its performance and reliability, good modeling of the air flow around a wind turbine blade profile is very decisive by introducing random parameters relating to the fluid. In this article, we first present the validation of the numerical simulation of the S809 airfoil carried out with ANSYS CFX by comparing the pressure coefficients, calculated for different turbulence models, with experimental data. Next, we introduce the uncertainties, using a probabilistic approach, to determine the influence of the input variables on the aerodynamic output coefficients.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="4eceaaf67d9936a1fc9c8bcde90b6d98" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":110740500,"asset_id":113899158,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/110740500/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="113899158"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="113899158"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 113899158; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="113899157"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/113899157/Study_of_pipe_flows_around_an_obstacle_with_Lattice_Boltzmann_Method"><img alt="Research paper thumbnail of Study of pipe flows around an obstacle with Lattice-Boltzmann Method" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/113899157/Study_of_pipe_flows_around_an_obstacle_with_Lattice_Boltzmann_Method">Study of pipe flows around an obstacle with Lattice-Boltzmann Method</a></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Fluid mechanics describes the physical phenomena of fluids which are often governed by partial de...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Fluid mechanics describes the physical phenomena of fluids which are often governed by partial derivative equations namely the continuity equation and the Navier-Stokes equation. The resolution of these equations using conventional methods encounters certain difficulties when it comes to dealing with problems where the geometry of the medium is complex or when there are several phases of a fluid or several fluids [TAO 16]. The current trend is towards a new approach to simulation research [CFD], which has gained a lot of popularity in recent years, it is called in English &quot;Lattice Boltzmann Method&quot; (LBM), which is a relatively new development in the Computational fluid dynamics [CFD]. The lattice Boltzmann method is a method of fluid dynamics (CFD). Instead of the Navier-Stokes equations, the Boltzmann discrete equation is solved to simulate the behavior of fluids using a collision-propagation scheme. In this work, the LBM was integrated in a python code in order to simula...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="113899157"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="113899157"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 113899157; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=113899157]").text(description); $(".js-view-count[data-work-id=113899157]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 113899157; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='113899157']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (false){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "-1" } } $('.js-work-strip[data-work-id=113899157]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":113899157,"title":"Study of pipe flows around an obstacle with Lattice-Boltzmann Method","internal_url":"https://www.academia.edu/113899157/Study_of_pipe_flows_around_an_obstacle_with_Lattice_Boltzmann_Method","owner_id":252468201,"coauthors_can_edit":true,"owner":{"id":252468201,"first_name":"JAOUAD","middle_initials":null,"last_name":"SMILY","page_name":"JAOUADSMILY","domain_name":"independent","created_at":"2023-01-08T12:01:25.996-08:00","display_name":"JAOUAD SMILY","url":"https://independent.academia.edu/JAOUADSMILY"},"attachments":[]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="113899156"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/113899156/Simulation_num%C3%A9rique_et_validation_exp%C3%A9rimentale_de_l_%C3%A9coulement_d_air_autour_d_un_profil_de_pale_d_%C3%A9olienne_de_type_S809"><img alt="Research paper thumbnail of Simulation numérique et validation expérimentale de l’écoulement d’air autour d’un profil de pale d’éolienne de type S809" class="work-thumbnail" src="https://attachments.academia-assets.com/110740515/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/113899156/Simulation_num%C3%A9rique_et_validation_exp%C3%A9rimentale_de_l_%C3%A9coulement_d_air_autour_d_un_profil_de_pale_d_%C3%A9olienne_de_type_S809">Simulation numérique et validation expérimentale de l’écoulement d’air autour d’un profil de pale d’éolienne de type S809</a></div><div class="wp-workCard_item"><span>Incertitudes et fiabilité des systèmes multiphysiques</span><span>, 2020</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">L'énergie éolienne est l'une des plus anciennes sources d'énergie utilisées par l'humanité. Aujou...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">L'énergie éolienne est l'une des plus anciennes sources d'énergie utilisées par l'humanité. Aujourd'hui avec l'impact négatif de l'énergie fossile sur l'environnement, l'installation des parcs éoliens partout dans le monde connait un essor considérable. Pour améliorer sa performance et sa fiabilité, une bonne modélisation de l'écoulement d'air autour d'un profil de pale d'éolienne est très déterminante. Dans cet article une simulation numérique du profil aérodynamique S809 a été réalisé par ANSYS CFX en utilisant plusieurs modèles de turbulence et à différents angles d'attaque. Par la suite les coefficients de pression calculés sont comparés à des données expérimentales pour valider la précision de la simulation et choisir le modèle de turbulence adéquat. ABSTRACT. Wind energy is one of the oldest sources of energy used by mankind. Today with the negative impact of fossil energy on the environment, the installation of wind farms all over the world is experiencing a considerable boom. To improve its performance and reliability, good modeling of the air flow around a wind turbine blade profile is very decisive. In this article, a numerical simulation of the S809 aerodynamic profile was performed by ANSYS CFX using several models of turbulence and at different angles of attack. Subsequently the calculated pressure coefficients are compared with experimental data to validate the simulation accuracy and choose the appropriate turbulence model.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="603bdefc67515a795d291336d0418248" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":110740515,"asset_id":113899156,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/110740515/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="113899156"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="113899156"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 113899156; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="113899155"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/113899155/Etude_des_%C3%A9coulements_en_charge_autour_d_un_obstacle_par_la_m%C3%A9thode_de_Lattice_Boltzmann"><img alt="Research paper thumbnail of Etude des écoulements en charge autour d’un obstacle par la méthode de Lattice-Boltzmann" class="work-thumbnail" src="https://attachments.academia-assets.com/110740514/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/113899155/Etude_des_%C3%A9coulements_en_charge_autour_d_un_obstacle_par_la_m%C3%A9thode_de_Lattice_Boltzmann">Etude des écoulements en charge autour d’un obstacle par la méthode de Lattice-Boltzmann</a></div><div class="wp-workCard_item"><span>Incertitudes et fiabilité des systèmes multiphysiques</span><span>, 2019</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">La mécanique des fluides décrit des phénomènes physiques des fluides qui sont souvent gouvernés p...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">La mécanique des fluides décrit des phénomènes physiques des fluides qui sont souvent gouvernés par des équations de type dérivées partielles à savoir l'équation de continuité et l'équation de Navier-Stokes. La résolution de ces équations en utilisant des méthodes classiques rencontre certaines difficultés lorsqu'il s'agit de traiter des problèmes où la géométrie du milieu est complexe ou lorsqu'on se trouve en présence de plusieurs phases d'un fluide ou de plusieurs fluides [TAO 16]. La tendance actuelle s'oriente vers une nouvelle approche pour la recherche en simulation [CFD], qui a gagné beaucoup de popularité ces dernières années, elle est appelée en anglais « Lattice Boltzmann Method » (LBM), qui est un développement relativement nouveau dans la CFD. La méthode de Lattice-Boltzmann est une méthode de dynamique des fluides (CFD). À la place des équations de Navier-Stokes, l'équation discrète de Boltzmann est résolue pour simuler le comportement de fluides à l'aide d'un schéma de collision-propagation. Dans ce travail, on a intégré la LBM dans un code python afin de simuler en 2D le comportement d'un fluide en charge à l'encontre d'un obstacle, chose qui va nous servir par la suite à déterminer dans les conduites les zones les plus sollicités (vitesse maximale et pression maximale) pour mieux dimensionner à la fois la conduite et ses accessoires (vanne, clapet, etc.) et éviter leur dégradation rapide. ABSTRACT. Fluid mechanics describes the physical phenomena of fluids which are often governed by partial derivative equations namely the continuity equation and the Navier-Stokes equation. The resolution of these equations using conventional methods encounters certain difficulties when it comes to dealing with problems where the geometry of the medium is complex or when there are several phases of a fluid or several fluids [TAO 16]. The current trend is towards a new approach to simulation research [CFD], which has gained a lot of popularity in recent years, it is called in English "Lattice Boltzmann Method" (LBM), which is a relatively new development in the Computational fluid dynamics [CFD]. The lattice Boltzmann method is a method of fluid dynamics (CFD). Instead of the Navier-Stokes equations, the Boltzmann discrete equation is solved to simulate the behavior of fluids using a collision-propagation scheme. In this work, the LBM was integrated in a python code in order to simulate in 2D the behavior of a pipe flow against an obstacle, which will be used later to determine in the pipes the most solicited zones (maximum velocity and maximum pressure) to better size both the pipe and its accessories (valve, etc.) and prevent their rapid degradation. MOTS-CLÉS. Ecoulement en charge, Simulation,</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="731019c65ee73055285df9172ab9936a" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":110740514,"asset_id":113899155,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/110740514/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="113899155"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="113899155"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 113899155; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="113899150"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/113899150/Reliability_Analysis_of_a_Wind_Turbine_Blade"><img alt="Research paper thumbnail of Reliability Analysis of a Wind Turbine Blade" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/113899150/Reliability_Analysis_of_a_Wind_Turbine_Blade">Reliability Analysis of a Wind Turbine Blade</a></div><div class="wp-workCard_item"><span>International Review on Modelling and Simulations</span><span>, Oct 31, 2022</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="113899150"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="113899150"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 113899150; 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