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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/> <meta http-equiv="expires" content="43200"/>   <title>mediaTUM - Medien- und Publikationsserver</title> <meta name="generator" content="mediatum - a multimedia content repository"/> <link rel="icon" type="image/vnd.microsoft.icon" href="/favicon.ico"/> <link rel="apple-touch-icon" sizes="57x57" href="/apple-touch-icon-57x57.png"/> <link rel="apple-touch-icon" sizes="60x60" href="/apple-touch-icon-60x60.png"/> <link rel="apple-touch-icon" sizes="72x72" href="/apple-touch-icon-72x72.png"/> <link rel="apple-touch-icon" sizes="76x76" href="/apple-touch-icon-76x76.png"/> <link rel="apple-touch-icon" sizes="114x114" href="/apple-touch-icon-114x114.png"/> <link rel="apple-touch-icon" sizes="120x120" href="/apple-touch-icon-120x120.png"/> <link rel="apple-touch-icon" sizes="144x144" href="/apple-touch-icon-144x144.png"/> <link rel="apple-touch-icon" sizes="152x152" href="/apple-touch-icon-152x152.png"/> <link rel="apple-touch-icon" sizes="180x180" href="/apple-touch-icon-180x180.png"/> <link rel="icon" type="image/png" href="/favicon-32x32.png" sizes="32x32"/> <link rel="icon" type="image/png" href="/favicon-194x194.png" sizes="194x194"/> <link rel="icon" type="image/png" href="/favicon-96x96.png" sizes="96x96"/> <link rel="icon" type="image/png" href="/android-chrome-192x192.png" sizes="192x192"/> <link rel="icon" type="image/png" href="/favicon-16x16.png" sizes="16x16"/> <meta name="msapplication-TileColor" content="#ffffff"/> <meta name="msapplication-TileImage" content="/mstile-144x144.png"/> <meta name="theme-color" content="#ffffff"/> <link rel="stylesheet" href="/static/css/mediatum.css"/> <script src="/static/js/mediatum.js"></script> <script src="/static/js/jquery-1.12.4.js"></script> <script type="text/javascript" language="javascript">function change_size(){ var searchform = $('#search-form').height(); var cheight = $('#portal-column-content').height()+12; $('#frame-tree').height(cheight-searchform); } $(window).resize(function() { change_size(); }); </script> <meta name="citation_title" content="Two-phase water evaporation MESHFREE CFD method for wet automotive component dry-out time prediction"/> <meta name="citation_author" content="Lee, J."/> <meta name="citation_author" content=" B盲der, D."/> <meta name="citation_author" content=" Rehfeldt, S."/> <meta name="citation_author" content=" Einsentr盲ger, A."/> <meta name="citation_author" content=" Kuhnert, J."/> <meta name="citation_author" content=" Michel, I."/> <meta name="citation_author" content=" Klein, H."/> <meta name="citation_conference_title" content="SIMVEC (SIMulation in VEhiCle) 2022"/> <meta name="citation_publication_date" content="2022"/> <meta name="citation_publication_date" content="2022"/> <meta name="DC.description" content="A new mass transfer model is developed in the Finite Pointset Method (FPM) to simulate the free water surface evaporation phenomenon at the water-air interface. The FPM, a Generalized Finite Difference Method (GFDM) implemented in the software MESHFREE by Fraunhofer ITWM (www.meshfree.eu), is widely used in many different academic and industrial fields, especially, in automotive water management applications. Thus, it is expected that the newly developed mass transfer model extends its capabilities in these applications. The multi-phase simulation results are validated with a series of experiments that measure the water evaporation rate with a relatively simple geometry at different given atmospheric conditions. MESHFREE uses a point cloud to discretize the domain and is able to resolve both fluid dynamics and continuum mechanics. In order to efficiently generalize the developed simulation method to arbitrary geometrical applications such as automotive components as well as to optimize the computation time, an automatized adaptive point cloud refinement feature is developed in this study. Since adaptive refinement of a point cloud is nearly computationally free, while it is generally time-consuming to re-mesh in mesh-based methods such as Volume of Fluids (VoF), the advantage of the meshfree approach is maximized with this newly developed feature. Through time- and location-dependent adaptive refinement with respect to humidity and velocity gradients, decent speedups with compromised accuracy as well as possibilities for potential automation of the entire process could be achieved."/> <meta name="citation_conference_title" content="SIMVEC (SIMulation in VEhiCle) 2022"/> <link rel="stylesheet" href="/static/css/mediatum-tum-editor.css"/> </head> <body onload="change_size();"> <div id="visual-portal-wrapper"> <div id="portal-top"> <div class="header header-left"> <script type="application/javascript" src="/static/js/webstat.js"></script> <noscript> <p><img src="https://webstat.srv.tum.de/matomo.php?idsite=78&rec=1" style="border:0;" alt="Matomo Image Tracker"/> </p> </noscript> <ul> <li><a href="/" class="mediatum-link-internal">mediaTUM</a> </li> <li><a href="https://www.ub.tum.de" class="mediatum-link-external">Universit盲tsbibliothek</a> </li> <li><a href="https://www.tum.de" class="mediatum-link-external">Technische Universit盲t 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id="portal-column-content"> <div id="portal-breadcrumbs"> <div style="text-align:right; float:right"> <p><a href="/1637492?nodes_per_page=10&show_id=1713014&style=full_standard" title="Dokument-Ansicht" class="view_switch mediatum-link-mediatum"><img src="/static/img/document.svg" class="mediatum-icon-small"/></a><a href="/1637492?nodes_per_page=10&show_id=1713014&style=full_text" title="Textansicht" class="view_switch mediatum-link-mediatum"><img src="/static/img/text.svg" class="mediatum-icon-small"/></a> </p> </div> <div class="mediatum-content-nav-path"><a href="/604993" class="breadcrumb-delimiter mediatum-link-mediatum">mediaTUM Gesamtbestand</a><a href="/670273" class="breadcrumb-delimiter mediatum-link-mediatum">Einrichtungen</a><a href="/670274" class="breadcrumb-delimiter mediatum-link-mediatum">Schools </a><a href="/1631378" class="breadcrumb-delimiter mediatum-link-mediatum">TUM School of Engineering and Design</a><a href="/1631381" class="breadcrumb-delimiter mediatum-link-mediatum">Departments</a><a href="/1631395" class="breadcrumb-delimiter mediatum-link-mediatum">Energy and Process Engineering</a><a href="/972742" class="breadcrumb-delimiter mediatum-link-mediatum">Lehrstuhl f眉r Anlagen- und Prozesstechnik (Prof. Klein)</a><a href="/1637492" class="mediatum-link-mediatum">2022</a> </div> </div>   <div id="result-nav"> <table> <tr> <td align="left" valign="top" nowrap=""><a href="/1637492?nodes_per_page=10&result_nav=first"> <div id="mediatum_img_pageleft_end"></div></a><a href="/1637492?nodes_per_page=10&show_id=1713014&result_nav=prev"> <div id="mediatum_img_pageleft"></div></a> </td> <td width="100%" align="center"><a href="javascript: history.back()" class="mediatum-link-mediatum">Zur眉ck</a><br/><a href="/1637492?nodes_per_page=10" class="mediatum-link-mediatum">Zur眉ck zum Anfang der Trefferliste</a><br/><a href="/1713014" class="mediatum-link-mediatum">Dauerhafter Link zum angezeigten Objekt</a> </td> <td align="right" valign="top" nowrap=""><a href="/1637492?nodes_per_page=10&show_id=1713014&result_nav=next"> <div id="mediatum_img_pageright"></div></a><a href="/1637492?nodes_per_page=10&result_nav=last"> <div id="mediatum_img_pageright_end"></div></a> </td> </tr> </table><br/> </div>  <link rel="stylesheet" href="/static/css/childs.css"/> <link rel="stylesheet" href="/static/css/jade_style.css"/> <div class="object_main content_container"> <dl class="object_meta object_column"><dt class="mask_label">Titel:</dt> <dd class="mask_value"><h1>Two-phase water evaporation MESHFREE CFD method for wet automotive component dry-out time prediction</h1></dd> <dt class="mask_label">Dokumenttyp:</dt> <dd class="mask_value">Konferenzbeitrag</dd> <dt class="mask_label">Art des Konferenzbeitrags:</dt> <dd class="mask_value">Vortrag / Pr盲sentation</dd> <dt class="mask_label">Autor(en):</dt> <dd class="mask_value">Lee, J.; B盲der, D.; Rehfeldt, S.; Einsentr盲ger, A.; Kuhnert, J.; Michel, I.; Klein, H.</dd> <dt class="mask_label">Abstract:</dt> <dd class="mask_value"><div id="abstract_full" style="display:none">A new mass transfer model is developed in the Finite Pointset Method (FPM) to simulate the free water surface evaporation phenomenon at the water-air interface. The FPM, a Generalized Finite Difference Method (GFDM) implemented in the software MESHFREE by Fraunhofer ITWM (www.meshfree.eu), is widely used in many different academic and industrial fields, especially, in automotive water management applications. Thus, it is expected that the newly developed mass transfer model extends its capabilities in these applications. The multi-phase simulation results are validated with a series of experiments that measure the water evaporation rate with a relatively simple geometry at different given atmospheric conditions. MESHFREE uses a point cloud to discretize the domain and is able to resolve both fluid dynamics and continuum mechanics. In order to efficiently generalize the developed simulation method to arbitrary geometrical applications such as automotive components as well as to optimize the computation time, an automatized adaptive point cloud refinement feature is developed in this study. Since adaptive refinement of a point cloud is nearly computationally free, while it is generally time-consuming to re-mesh in mesh-based methods such as Volume of Fluids (VoF), the advantage of the meshfree approach is maximized with this newly developed feature. Through time- and location-dependent adaptive refinement with respect to humidity and velocity gradients, decent speedups with compromised accuracy as well as possibilities for potential automation of the entire process could be achieved.     <a href="#!" title="Text reduzieren" onclick="expandLongMetatext('abstract'); return false" class="mediatum-link-mediatum">«</a></div><div id="abstract_more"> A new mass transfer model is developed in the Finite Pointset Method (FPM) to simulate the free water surface evaporation phenomenon at the water-air interface. The FPM, a Generalized Finite Difference Method (GFDM) implemented in the software MESHFREE by Fraunhofer ITWM (www.meshfree.eu), is widely used in many different academic and industrial fields, especially, in automotive water management applications. Thus, it is expected that the newly developed mass transfer model extends its capabilit...     <a href="#!" title="gesamten Text zeigen" onclick="expandLongMetatext('abstract'); return false" class="mediatum-link-mediatum">»</a></div></dd> <dt class="mask_label">Stichworte:</dt> <dd class="mask_value">Water Evaporation CFD</dd> <dt class="mask_label">Kongress- / Buchtitel:</dt> <dd class="mask_value">SIMVEC (SIMulation in VEhiCle) 2022</dd> <dt class="mask_label">Datum der Konferenz:</dt> <dd class="mask_value">22.11.2022 - 23.11.2022</dd> <dt class="mask_label">Verlag / Institution:</dt> <dd class="mask_value">VDI Wissensforum</dd> <dt class="mask_label">Publikationsdatum:</dt> <dd class="mask_value">22.11.2022</dd> <dt class="mask_label">Jahr:</dt> <dd class="mask_value">2022</dd> <dt class="action_icon"><a href="/export/1713014/bibtex" target="bibtexdocument" title="BibTeX Informationen in neuem Fenster 枚ffnen" class="mediatum-link-mediatum"><img src="/static/img/bibtex.gif" class="mediatum-icon-small"/> BibTeX</a> </dt> </dl>  <div class="clear"></div> </div> <div class="clear"></div>  <div id="paths"><b>Vorkommen:</b><br/> <ul> <li><a href="/604993" class="breadcrumb-delimiter mediatum-link-mediatum">mediaTUM Gesamtbestand</a><a href="/670273" class="breadcrumb-delimiter mediatum-link-mediatum">Einrichtungen</a><a href="/670274" class="breadcrumb-delimiter mediatum-link-mediatum">Schools </a><a href="/1631378" class="breadcrumb-delimiter mediatum-link-mediatum">TUM School of Engineering and Design</a><a href="/1631381" class="breadcrumb-delimiter mediatum-link-mediatum">Departments</a><a href="/1631395" class="breadcrumb-delimiter mediatum-link-mediatum">Energy and Process Engineering</a><a href="/972742" class="breadcrumb-delimiter mediatum-link-mediatum">Lehrstuhl f眉r Anlagen- und Prozesstechnik (Prof. Klein)</a><a href="/1637492" class="mediatum-link-mediatum">2022</a> </li> </ul> <ul> <li><a href="/604993" class="breadcrumb-delimiter mediatum-link-mediatum">mediaTUM Gesamtbestand</a><a href="/1433087" class="breadcrumb-delimiter mediatum-link-mediatum">Hochschulbibliographie</a><a href="/1653795" class="breadcrumb-delimiter mediatum-link-mediatum">2022</a><a href="/1653796" class="breadcrumb-delimiter mediatum-link-mediatum">Schools und Fakult盲ten</a><a href="/1654117" class="breadcrumb-delimiter mediatum-link-mediatum">TUM School of Engineering and Design</a><a href="/1654180" class="mediatum-link-mediatum">Lehrstuhl f眉r Anlagen- und Prozesstechnik (Prof. Klein)</a> </li> </ul> </div>  </div> <div style="clear:both;"></div> </div> <div style="clear:both"></div> <div id="footer"><span class="footer_left"><a href="mailto:mediatum@ub.tum.de" class="customcontent mediatum-link-external">mediatum@ub.tum.de</a><a href="/?item=604993_15.html" class="customcontent mediatum-link-internal">Kontakt</a><a href="/?item=604993_17.html" class="customcontent mediatum-link-internal">脺ber mediaTUM</a><a href="/?item=604993_14.html" class="customcontent mediatum-link-internal">Hilfe</a></span><span class="footer_right"><a href="/?item=604993_12.html" class="customcontent mediatum-link-internal">Nutzungsrechte</a><a href="/?item=604993_9.html" class="customcontent mediatum-link-internal">Datenschutz</a><a href="/?item=604993_18.html" class="customcontent mediatum-link-internal">Barrierefreiheit</a><a href="https://www.ub.tum.de/impressum" class="customcontent mediatum-link-external">Impressum</a></span> </div> </div> </body> </html>