An analytical model for prediction of turbine tip clearance and their optimal parametric relationship to its thermal control

An analytical model for prediction of turbine tip clearance and their optimal parametric relationship to its thermal control | 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 An analytical model for prediction of turbine tip clearance and their optimal parametric relationship to its thermal control Azita Abdollahi, Anita Abdollahi This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4243863/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 Turbine tip clearance has a significant importance on the generated gas turbine power due to its effect on the undesirable blade tip leakage flows. So, the control of this parameter, has attracted the attention of many researches of this field. This paper, has focused on the estimation and prediction of the mentioned distance analytically. This radial distance is estimated by modeling the thermal and mechanical effects on the turbine components that can be used to facilitate research on the development of the tip clearance control systems. Finally, this paper addresses to the thermal control by using jet impingement on the external case wall by manifolds attached to the outside of the turbine and the required mass flow rate is calculated by adjusting the velocity of the jet impingement to achieve the desired tip clearance. turbine tip clearance leakage flow jet impingement active clearance control 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-4243863","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":290711298,"identity":"958e009c-fe25-44ae-8822-6efe627ff780","order_by":0,"name":"Azita Abdollahi","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA/0lEQVRIie3QQWoCMRTG8SeBdCO6HSm0V3hSEAWxV/mCUDfVFmYjCBoQxo0H0FWvYOkFCoHxCkILtXiBcTfQjRmctqvMbF3kv0oYfnmTEPl8F5gMiGn/TJDZDkQ3+YfASeoZAf8S0B3JEtJY5eS8BSktS36MP+ave3BvVCNxSL7T3mDzpStJSu0nJ/mMQwb3Q0mSGegPNzGJxpKCjnaR3WMrAAsV2TUAkRG6tndh15T7M5lZcpW8A7MB2yk/RSSfYiypNjVgYIksnJLfZasiUQ0JD9vmOlZRZ8kFJHuxZDxRL4vF2zHtTm5rxphdOp46yX/ib1XR9qhy4PP5fD53JyrcUVxhMxsWAAAAAElFTkSuQmCC","orcid":"","institution":"University of Tehran","correspondingAuthor":true,"prefix":"","firstName":"Azita","middleName":"","lastName":"Abdollahi","suffix":""},{"id":290711299,"identity":"df938cb2-7241-4825-8606-d8c7e25fcad0","order_by":1,"name":"Anita Abdollahi","email":"","orcid":"","institution":"Razi University","correspondingAuthor":false,"prefix":"","firstName":"Anita","middleName":"","lastName":"Abdollahi","suffix":""}],"badges":[],"createdAt":"2024-04-09 19:59:13","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-4243863/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-4243863/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":56864337,"identity":"901c1c14-2cda-409b-8d24-4e3896e1c2b4","added_by":"auto","created_at":"2024-05-21 12:05:53","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":565860,"visible":true,"origin":"","legend":"","description":"","filename":"newmanuscript2024.pdf","url":"https://assets-eu.researchsquare.com/files/rs-4243863/v1_covered_f97d65fa-ae8a-4c0f-8427-3168e326f108.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"An analytical model for prediction of turbine tip clearance and their optimal parametric relationship to its thermal control","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":"turbine tip clearance, leakage flow, jet impingement, active clearance control","lastPublishedDoi":"10.21203/rs.3.rs-4243863/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-4243863/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eTurbine tip clearance has a significant importance on the generated gas turbine power due to its effect on the undesirable blade tip leakage flows. 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