Thermal Analysis and Design Optimization of Inconel 718 Convergent -Divergent Nozzle for High- Performance Propulsion System

Thermal Analysis and Design Optimization of Inconel 718 Convergent -Divergent Nozzle for High- Performance Propulsion System | 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 Thermal Analysis and Design Optimization of Inconel 718 Convergent -Divergent Nozzle for High- Performance Propulsion System Raja Munusamy, Devarinti Sai Susmitha This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-6027192/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 This paper presents an investigation into the design and thermal analysis of a CD nozzle made from Inconel 718, an advanced material known for superior thermal and mechanical properties. The design of the nozzle was based on theoretical computation to achieve optimal performance in a high-temperature and high-pressure environment characteristic of propulsion systems. A detailed geometric model of the nozzle was developed in Autodesk Fusion 360 for complete simulations. Thermal analysis was done to ascertain the heat flow with critical thermal gradients and characteristics of heat flux, which were both necessary to ensure that there was structural integrity at work. Material response to thermal loads through thermal stress analysis is also used to check on the suitability of the design for conditions such as those encountered in rocket propulsion and high-speed jet engines. The results indicate that Inconel 718 nozzle design withstands the thermal stress and maintains efficient working performance. This paper adds valuable knowledge about the thermal performance behavior of CD nozzles to the domain, in which propulsion system design improvements would be enhanced in the engineering area of aerospace. Convergent-divergent nozzle Inconel 718 Thermal analysis Thermal stress Autodesk Fusion 360 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. 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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-6027192","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":422152705,"identity":"a4be5138-5790-4650-ac50-651c8d404e6d","order_by":0,"name":"Raja Munusamy","email":"data:image/png;base64,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","orcid":"","institution":"Alliance University","correspondingAuthor":true,"prefix":"","firstName":"Raja","middleName":"","lastName":"Munusamy","suffix":""},{"id":422152707,"identity":"12ad4dd5-7da1-479a-ac35-1b4acc9b3390","order_by":1,"name":"Devarinti Sai Susmitha","email":"","orcid":"","institution":"Alliance University","correspondingAuthor":false,"prefix":"","firstName":"Devarinti","middleName":"Sai","lastName":"Susmitha","suffix":""}],"badges":[],"createdAt":"2025-02-14 04:23:11","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-6027192/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-6027192/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":78829515,"identity":"6ad228e1-8336-4f39-9061-821799692fd8","added_by":"auto","created_at":"2025-03-19 13:17:00","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":452624,"visible":true,"origin":"","legend":"","description":"","filename":"DiscoverAppliedSciencesCDNozzle.pdf","url":"https://assets-eu.researchsquare.com/files/rs-6027192/v1_covered_49d2c9be-f1c7-4d70-b623-493dbdbecfb7.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"\u003cp\u003eThermal Analysis and Design Optimization of Inconel 718 Convergent -Divergent Nozzle for High- Performance Propulsion System\u003c/p\u003e","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":"Convergent-divergent nozzle, Inconel 718, Thermal analysis, Thermal stress, Autodesk Fusion 360","lastPublishedDoi":"10.21203/rs.3.rs-6027192/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-6027192/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eThis paper presents an investigation into the design and thermal analysis of a CD nozzle made from Inconel 718, an advanced material known for superior thermal and mechanical properties. 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