Numerical Simulation of Flow Characteristics in a Rectangular Cavity

Numerical Simulation of Flow Characteristics in a Rectangular Cavity | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Numerical Simulation of Flow Characteristics in a Rectangular Cavity Rishu Gupta, Sachu S Soman, Praveen S Duth This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-6578703/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract Turbulent flow over an open cavity has been investigated using simulation data generated by ANSYS Fluent and validated with published experimental data. The effects of various Reynolds numbers (58000, 25000, 10000) and cavity aspect ratios, notably l/d = 1, 2, and 4 on the flow are reported. A critical Reynolds number is determined, reflecting changes in flow behaviours. For l/d = 1, there is a strong interaction between the cavity's recirculating zone and downstream flow. For l/d = 1, the recirculating zone within the cavity interacts strongly with the downstream flow. For aspect ratios of 2 and 4, mean flow clearly moves and a low-pressure region developed between inside of the cavity due to shear layer formation. The aspect ratio increases, the flow near the cavity's front adheres closer to the surface, while the instability in the back grows stronger. Cavity Turbulent Flow k-ε Model Reynolds Number TKE modelling and simulation Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-6578703","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":456533060,"identity":"7e67dc77-34d2-4f87-9361-e14fd5754395","order_by":0,"name":"Rishu Gupta","email":"","orcid":"","institution":"SRM Institute of Science and Technology","correspondingAuthor":false,"prefix":"","firstName":"Rishu","middleName":"","lastName":"Gupta","suffix":""},{"id":456533061,"identity":"34a5f728-143a-467e-a05d-b56136aaf0e7","order_by":1,"name":"Sachu S Soman","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA6ElEQVRIiWNgGAWjYHACNjDJ2N7/8AGQ5uEjWgtzzxlmA5AWNqK1sM/IYZNAcPEA+fbDzx7z/Kmz552Re6zya46dDBsD88NHN/BoMTiTZm7M23Y4cWbPu7TbstuSgQ5jMzbOwaeFIYdNmrfhQIJhe4LZbcltzEAtPGzS+LTI979hkwY5zP5Aglmx5LZ6wloYbgBt4WFjZmzsyDFj/LjtMGEtBjeemUnOBfqlsedYsjTjtuNA7QT8It+f/EziDdBhjO3NBz/+3FZtz8/e/PAxXochA2YeMEmschBg/EGK6lEwCkbBKBgxAABISUUtzR8/ywAAAABJRU5ErkJggg==","orcid":"","institution":"SRM Institute of Science and Technology","correspondingAuthor":true,"prefix":"","firstName":"Sachu","middleName":"S","lastName":"Soman","suffix":""},{"id":456533062,"identity":"67ec5668-6772-4070-95d9-53216d6b105c","order_by":2,"name":"Praveen S Duth","email":"","orcid":"","institution":"SRM Institute of Science and Technology","correspondingAuthor":false,"prefix":"","firstName":"Praveen","middleName":"S","lastName":"Duth","suffix":""}],"badges":[],"createdAt":"2025-05-02 13:23:10","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-6578703/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-6578703/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":91329082,"identity":"ee4aa830-a2d8-47ed-a97d-b7c65724db88","added_by":"auto","created_at":"2025-09-15 10:31:25","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":1118793,"visible":true,"origin":"","legend":"","description":"","filename":"manusriptrevised.pdf","url":"https://assets-eu.researchsquare.com/files/rs-6578703/v1_covered_9dc1d93c-917a-487c-92e4-615c5d555a66.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Numerical Simulation of Flow Characteristics in a Rectangular Cavity","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":true,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true},"keywords":"Cavity, Turbulent Flow, k-ε Model, Reynolds Number, TKE, modelling and simulation","lastPublishedDoi":"10.21203/rs.3.rs-6578703/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-6578703/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eTurbulent flow over an open cavity has been investigated using simulation data generated by ANSYS Fluent and validated with published experimental data. 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