Simulation Based Design Tool for Radial TurbineRotors

Simulation Based Design Tool for Radial TurbineRotors | 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 Simulation Based Design Tool for Radial TurbineRotors Mostafa Abdo Fawaz, Ahmed Farid Ayad, Mohammed Shaheen, Hesham Mahmoud, and 1 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7663106/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 Radial turbines are widely employed in turbochargers, where they can be paired with compressors to improve energy efficiency in power generation and recovery applications. Optimizing turbine rotor design is critical for maximizing efficiency, yet conventional approaches often rely heavily on empirical methods with limited flexibility. This study develops an integrated design methodology that integrates simplified one-dimensional (1D) formulations with advanced computational fluid dynamics (CFD) analyses to streamline the radial turbine rotor design process. The tool first applies 1D equations to identify feasible initial candidates for key rotor design parameters. It then constructs a design domain by specifying boundary values for every parameter. Within this space, multiple design scenarios are tested using CFD simulations, allowing for detailed performance evaluation and identification of optimal geometries. The tool was applied to the radial turbine in the Borg-Warner K03/05 turbocharger as a case study. Using the methodology, a CAD model of the turbine rotor was generated that met the specified design requirements. The optimized rotor demonstrated an increase in operational efficiency 2% compared to the initial design, the findings substantiate the effectiveness of the integrated framework. The proposed design tool successfully combines 1D modeling with CFD to provide a systematic and flexible framework for radial turbine rotor design. By efficiently exploring a wide design space, it enables the identification of high-performance rotor geometries that improve efficiency beyond conventional designs. This method can be extended to broader applications in energy recovery and turbocharging systems. Mechanical Engineering Full Text Additional Declarations The authors declare no competing interests. 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. 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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-7663106","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":517946914,"identity":"44ff1e7f-70f8-4534-beef-0d81986cd884","order_by":0,"name":"Mostafa Abdo Fawaz","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAABD0lEQVRIiWNgGAWjYNACGwZ+MP2Bx0YORB94gF89YwNDGoNkA4g1QybNGKwlgVgtzDw2hxNBDAZ8WnTb258/+JFgJ8E/I/nxZ56ctPT5YYcfAm2xk9NtwK7F7MwZw8aehGQJiRtpBoZzztjkbrydZgDUkmxsdgCHlhs5jA28P5jrGG4nGCS87UnL3Tg7AaTlQOI2nFrSHzb+SaiXkL+d/uEA77/D6YazgQz8WhIMm3kSDksY3M4xbOThOZwgL51DwBagX2bLJByXMLz/pphxBk+a4QbpnIIDCQZ4/HK8/cHHNwnVEnJnjm/+AIxKefnZ6UBGhZ0cLi2YwACs0oBY5SAg30CK6lEwCkbBKBgJAACKyWrBqIJV3gAAAABJRU5ErkJggg==","orcid":"","institution":"military technical college","correspondingAuthor":true,"prefix":"","firstName":"Mostafa","middleName":"Abdo","lastName":"Fawaz","suffix":""},{"id":517946915,"identity":"c7185003-f28d-4f04-a545-b9588f679d48","order_by":1,"name":"Ahmed Farid Ayad","email":"","orcid":"","institution":"military technical college","correspondingAuthor":false,"prefix":"","firstName":"Ahmed","middleName":"Farid","lastName":"Ayad","suffix":""},{"id":517946916,"identity":"13c551f7-eb62-41a4-a360-a268067a5111","order_by":2,"name":"Mohammed Shaheen","email":"","orcid":"","institution":"military technical college","correspondingAuthor":false,"prefix":"","firstName":"Mohammed","middleName":"","lastName":"Shaheen","suffix":""},{"id":517946917,"identity":"ac79e924-77b1-4299-8048-dc7a4bb0164c","order_by":3,"name":"Hesham Mahmoud","email":"","orcid":"","institution":"military technical college","correspondingAuthor":false,"prefix":"","firstName":"Hesham","middleName":"","lastName":"Mahmoud","suffix":""},{"id":517946918,"identity":"04b0c4cc-4aae-4691-8267-6e944a2a62cd","order_by":4,"name":"Al-samieh, M.F","email":"","orcid":"","institution":"military technical college","correspondingAuthor":false,"prefix":"","firstName":"M.F","middleName":"","lastName":"Al-samieh","suffix":""}],"badges":[],"createdAt":"2025-09-20 07:11:29","currentVersionCode":1,"declarations":{"humanSubjects":false,"vertebrateSubjects":true,"conflictsOfInterestStatement":false,"humanSubjectEthicalGuidelines":false,"humanSubjectConsent":false,"humanSubjectClinicalTrial":false,"humanSubjectCaseReport":false,"vertebrateSubjectEthicalGuidelines":true},"doi":"10.21203/rs.3.rs-7663106/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-7663106/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":91942035,"identity":"e6dc563c-a5af-405d-b716-55e5739f8eb8","added_by":"auto","created_at":"2025-09-23 04:08:55","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":1134236,"visible":true,"origin":"","legend":"","description":"","filename":"SpringerNatureLaTeXTemplate88.pdf","url":"https://assets-eu.researchsquare.com/files/rs-7663106/v1_covered_c872db7b-39e3-4f92-8bbd-b9536d1e9c94.pdf"}],"financialInterests":"The authors declare no competing interests.","formattedTitle":"\u003cp\u003eSimulation Based Design Tool for Radial Turbine\u003c/p\u003e\u003cp\u003eRotors\u003c/p\u003e","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":true,"hideJournal":true,"highlight":"","institution":"Military Technical College","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":"","lastPublishedDoi":"10.21203/rs.3.rs-7663106/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-7663106/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eRadial turbines are widely employed in turbochargers, where they can be paired with compressors to improve energy efficiency in power generation and recovery applications. 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