Experimental Investigation of Plane Jets Exiting Five Parallel Channels with Large Aspect Ratio

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Our study focuses on the influence of two different outlet nozzle geometries (triangular shape with 2 x 7.5掳 and blunt geometry) with respect to variation of Reynolds number from 5500 - 12000. It is shown that the outlet geometry has a major influence on the jet formation in terms of uniformity of velocity profiles downstream of the sudden expansion. Furthermore, we describe characteristic regions like converging region, merging region and combined region. The triangular outlet geometry generates most uniform velocity distributions in comparison to a blunt outlet nozzle geometry. The blunt outlet geometry shows an unstable behavior where the jets tend to attach to one side of the walls (ceiling) generating a large recirculation region on the opposite side. Static pressure measurements confirm the observation and indicate that the recirculation region is connected to larger pressure drop." /> <meta name="citation_title" content="Experimental Investigation of Plane Jets Exiting Five Parallel Channels with Large Aspect Ratio" /> <meta name="citation_author" content="Laurentiu Moruz" /> <meta name="citation_author" content="Jens Kitzhofer" /> <meta name="citation_author" content="Mircea Dinulescu" /> <meta name="citation_doi" content="10.5281/zenodo.1340174" /> <meta name="citation_abstract_html_url" content="https://zenodo.org/records/1340174" /> <meta property="og:title" content="Experimental Investigation of Plane Jets Exiting Five Parallel Channels with Large Aspect Ratio" /> <meta property="og:description" content="The paper aims to extend the knowledge about jet behavior and jet interaction between five plane unventilated jets with large aspect ratio (AR). The distance between the single plane jets is two times the channel height. The experimental investigation applies 2D Particle Image Velocimetry (PIV) and static pressure measurements. Our study focuses on the influence of two different outlet nozzle geometries (triangular shape with 2 x 7.5掳 and blunt geometry) with respect to variation of Reynolds number from 5500 - 12000. It is shown that the outlet geometry has a major influence on the jet formation in terms of uniformity of velocity profiles downstream of the sudden expansion. Furthermore, we describe characteristic regions like converging region, merging region and combined region. The triangular outlet geometry generates most uniform velocity distributions in comparison to a blunt outlet nozzle geometry. The blunt outlet geometry shows an unstable behavior where the jets tend to attach to one side of the walls (ceiling) generating a large recirculation region on the opposite side. Static pressure measurements confirm the observation and indicate that the recirculation region is connected to larger pressure drop." /> <meta property="og:url" content="https://zenodo.org/records/1340174" /> <meta property="og:site_name" content="Zenodo" /> <meta name="twitter:card" content="summary" /> <meta name="twitter:site" content="@zenodo_org" /> <meta name="twitter:title" content="Experimental Investigation of Plane Jets Exiting Five Parallel Channels with Large Aspect Ratio" /> <meta name="twitter:description" content="The paper aims to extend the knowledge about jet behavior and jet interaction between five plane unventilated jets with large aspect ratio (AR). The distance between the single plane jets is two times the channel height. The experimental investigation applies 2D Particle Image Velocimetry (PIV) and static pressure measurements. Our study focuses on the influence of two different outlet nozzle geometries (triangular shape with 2 x 7.5掳 and blunt geometry) with respect to variation of Reynolds number from 5500 - 12000. It is shown that the outlet geometry has a major influence on the jet formation in terms of uniformity of velocity profiles downstream of the sudden expansion. Furthermore, we describe characteristic regions like converging region, merging region and combined region. The triangular outlet geometry generates most uniform velocity distributions in comparison to a blunt outlet nozzle geometry. The blunt outlet geometry shows an unstable behavior where the jets tend to attach to one side of the walls (ceiling) generating a large recirculation region on the opposite side. Static pressure measurements confirm the observation and indicate that the recirculation region is connected to larger pressure drop." /> <meta name="citation_pdf_url" content="https://zenodo.org/records/1340174/files/10006971.pdf"/> <link rel="alternate" type="application/pdf" href="https://zenodo.org/records/1340174/files/10006971.pdf"> <link rel="canonical" href="https://zenodo.org/records/1340174"> <title>Experimental Investigation of Plane Jets Exiting Five Parallel Channels with Large Aspect Ratio</title> <link rel="shortcut icon" type="image/x-icon" href="/static/favicon.ico"/> <link rel="apple-touch-icon" sizes="120x120" href="/static/apple-touch-icon-120.png"/> <link rel="apple-touch-icon" sizes="152x152" href="/static/apple-touch-icon-152.png"/> <link rel="apple-touch-icon" sizes="167x167" href="/static/apple-touch-icon-167.png"/> <link rel="apple-touch-icon" sizes="180x180" href="/static/apple-touch-icon-180.png"/> <link rel="stylesheet" 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href="/search?q=metadata.creators.person_or_org.name:%22Laurentiu+Moruz%22" > <span class="creatibutor-name">Laurentiu Moruz</span></a> <i class="user icon"></i> </li> <li class="creatibutor-wrap separated"> <a class="ui creatibutor-link" href="/search?q=metadata.creators.person_or_org.name:%22Jens+Kitzhofer%22" > <span class="creatibutor-name">Jens Kitzhofer</span></a> <i class="user icon"></i> </li> <li class="creatibutor-wrap separated"> <a class="ui creatibutor-link" href="/search?q=metadata.creators.person_or_org.name:%22Mircea+Dinulescu%22" > <span class="creatibutor-name">Mircea Dinulescu</span></a> <i class="user icon"></i> </li> </ul> </div> </div> </div> </section> </section> <section id="description" class="rel-mt-2 rich-input-content" aria-label="Record description"> <h2 id="description-heading" class="sr-only">Description</h2> <div style="word-wrap: break-word;"> <p>The paper aims to extend the knowledge about jet behavior and jet interaction between five plane unventilated jets with large aspect ratio (AR). The distance between the single plane jets is two times the channel height. The experimental investigation applies 2D Particle Image Velocimetry (PIV) and static pressure measurements. Our study focuses on the influence of two different outlet nozzle geometries (triangular shape with 2 x 7.5° and blunt geometry) with respect to variation of Reynolds number from 5500 - 12000. It is shown that the outlet geometry has a major influence on the jet formation in terms of uniformity of velocity profiles downstream of the sudden expansion. Furthermore, we describe characteristic regions like converging region, merging region and combined region. The triangular outlet geometry generates most uniform velocity distributions in comparison to a blunt outlet nozzle geometry. The blunt outlet geometry shows an unstable behavior where the jets tend to attach to one side of the walls (ceiling) generating a large recirculation region on the opposite side. Static pressure measurements confirm the observation and indicate that the recirculation region is connected to larger pressure drop.</p> </div> </section> <section id="record-files" class="rel-mt-2 rel-mb-3" aria-label="Files" ><h2 id="files-heading">Files</h2> <div class="ui accordion panel mb-10 open" href="#files-preview-accordion-panel"> <h3 class="active title panel-heading open m-0"> <div role="button" id="files-preview-accordion-trigger" aria-controls="files-preview-accordion-panel" aria-expanded="true" tabindex="0" class="trigger" aria-label="File preview" > <span id="preview-file-title">10006971.pdf</span> <i class="angle right icon" aria-hidden="true"></i> </div> </h3> <div role="region" id="files-preview-accordion-panel" aria-labelledby="files-preview-accordion-trigger" class="active content preview-container pt-0 open" > <div> <iframe title="Preview" class="preview-iframe" id="preview-iframe" name="preview-iframe" 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The distance between the single plane jets is two times the channel height. The experimental investigation applies 2D Particle Image Velocimetry (PIV) and static pressure measurements. Our study focuses on the influence of two different outlet nozzle geometries (triangular shape with 2 x 7.5\u00b0 and blunt geometry) with respect to variation of Reynolds number from 5500 - 12000. It is shown that the outlet geometry has a major influence on the jet formation in terms of uniformity of velocity profiles downstream of the sudden expansion. Furthermore, we describe characteristic regions like converging region, merging region and combined region. The triangular outlet geometry generates most uniform velocity distributions in comparison to a blunt outlet nozzle geometry. The blunt outlet geometry shows an unstable behavior where the jets tend to attach to one side of the walls (ceiling) generating a large recirculation region on the opposite side. 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"2024-08-02T04:38:45.902092+00:00", "versions": {"index": 1, "is_latest": true}}' data-styles='[["apa", "APA"], ["harvard-cite-them-right", "Harvard"], ["modern-language-association", "MLA"], ["vancouver", "Vancouver"], ["chicago-fullnote-bibliography", "Chicago"], ["ieee", "IEEE"]]' data-defaultstyle='"apa"' data-include-deleted='false'> </div> </div> </div> <div class="sidebar-container"> <h2 class="ui medium top attached header mt-0">Export</h2> <div id="export-record" class="ui segment bottom attached exports rdm-sidebar"> <div id="recordExportDownload" data-formats='[{"export_url": "/records/1340174/export/json", "name": "JSON"}, {"export_url": "/records/1340174/export/json-ld", "name": "JSON-LD"}, {"export_url": "/records/1340174/export/csl", "name": "CSL"}, {"export_url": "/records/1340174/export/datacite-json", "name": "DataCite JSON"}, {"export_url": "/records/1340174/export/datacite-xml", "name": "DataCite XML"}, {"export_url": "/records/1340174/export/dublincore", "name": 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Dinulescu"}], "dateCreated": "2018-08-07T09:26:30.947272+00:00", "dateModified": "2024-08-02T04:38:45.902092+00:00", "datePublished": "2017-03-02", "description": "\u003cp\u003eThe paper aims to extend the knowledge about jet behavior and jet interaction between five plane unventilated jets with large aspect ratio (AR). The distance between the single plane jets is two times the channel height. The experimental investigation applies 2D Particle Image Velocimetry (PIV) and static pressure measurements. Our study focuses on the influence of two different outlet nozzle geometries (triangular shape with 2 x 7.5\u0026deg; and blunt geometry) with respect to variation of Reynolds number from 5500 - 12000. It is shown that the outlet geometry has a major influence on the jet formation in terms of uniformity of velocity profiles downstream of the sudden expansion. Furthermore, we describe characteristic regions like converging region, merging region and combined region. The triangular outlet geometry generates most uniform velocity distributions in comparison to a blunt outlet nozzle geometry. The blunt outlet geometry shows an unstable behavior where the jets tend to attach to one side of the walls (ceiling) generating a large recirculation region on the opposite side. Static pressure measurements confirm the observation and indicate that the recirculation region is connected to larger pressure drop.\u003c/p\u003e", "identifier": "https://doi.org/10.5281/zenodo.1340174", "inLanguage": {"@type": "Language", "alternateName": "eng", "name": "English"}, "issue": "4", "license": "https://creativecommons.org/licenses/by/4.0/legalcode", "name": "Experimental Investigation of Plane Jets Exiting Five Parallel Channels with Large Aspect Ratio", "publisher": {"@type": "Organization", "name": "Zenodo"}, "size": "1.12 MB", "url": "https://zenodo.org/records/1340174", "version": "10006971", "volume": "10.0"}</script> <script src="/static/dist/js/invenio-app-rdm-landing-page-theme.3b272942835c0a00f70d.js"></script> <script src="/static/dist/js/9945.a92c05fa251cdd46af39.js"></script> <script src="/static/dist/js/1357.6ee8cbca1c30c50f9548.js"></script> <script src="/static/dist/js/1644.e1781edcf51e2dc7f142.js"></script> <script src="/static/dist/js/8962.96d2b28b733c6e09354a.js"></script> <script src="/static/dist/js/9300.3ca5da14db03d2fd0854.js"></script> <script src="/static/dist/js/5680.fe8049296074c5f486f1.js"></script> <script src="/static/dist/js/invenio-app-rdm-landing-page.2a922a49323c9b3bb9a9.js"></script> <script src="/static/dist/js/previewer_theme.a4cb12f2f2d734727d26.js"></script> <script src="/static/dist/js/zenodo-rdm-citations.fec7f37f1c6823bc87e7.js"></script> <div class="ui container info message cookie-banner hidden"> <i class="close icon"></i> <div> <i aria-hidden="true" class="info icon"></i> <p class="inline">This site uses cookies. 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Experimental Investigation of Plane Jets Exiting Five Parallel Channels with Large Aspect Ratio