Research on the Aerodynamic Performance of the External Windshield of High-Speed Trains Operating on Open Lines

Research on the Aerodynamic Performance of the External Windshield of High-Speed Trains Operating on Open Lines | 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 Research on the Aerodynamic Performance of the External Windshield of High-Speed Trains Operating on Open Lines Yongrong JIN, Xiaoli CHEN This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-3713674/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 The proportion of aerodynamic resistance in train operation resistance is increasing as the speed of the train continues to increase. A streamlined front can reduce train running resistance effectively. Windshields and pantographs cause sudden changes in the geometric shape of the train's longitudinal section also have a significant impact on train running resistance. High-speed trains generally use external windshields, which can reduce the impact of sudden changes on the running resistance to geometric shape of the train end connection. The article constructs a 3-group calculation model based on the true geometric shape of high-speed trains to study the aerodynamic drag reduction effect of the external windshield with three-dimensional, steady, incompressible N-S equations and k -ε are adopted to calculate the flow field distribution and pressure distribution of the external windshield of trains operating on open lines at a speed of 250km/h, 300km/h, 350km/h, 400km/h or 450km/h separately. The aerodynamic resistance and lift of the external windshield were fitted, although the train operating speed changed, it was a variation curve. High-speed train External windshield༛Aerodynamic performance༛Aerodynamic performance༛Numerical 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-3713674","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":256660540,"identity":"68eb2e6a-8bfb-46b8-8d40-23d05fd6a2a6","order_by":0,"name":"Yongrong JIN","email":"","orcid":"","institution":"Hunan Railway Professional Technology College","correspondingAuthor":false,"submittingAuthor":false,"prefix":"","firstName":"Yongrong","middleName":"","lastName":"JIN","suffix":""},{"id":256660542,"identity":"61e6dec4-d3ac-43f8-883b-ed049d607b2d","order_by":1,"name":"Xiaoli CHEN","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAABCElEQVRIie3RMUsDMRTA8RyB1yWt6ztarR8hIojg7ufIIdjl6lKQK0ixHDyX6uxkP4NLcXxH4FwiroqL4Cw41qFgilvxrro55LcEwvvzCBEiCP4jKfTyMNAYnzNmZ1vQyPmXibIF77tyt6VKs27PdyLw8IiHJJMbTLfr5+/lDD/vRictVJqfHPRIpELMs1llEudwGl86GEB7oovrrNMn8cDRxL1UJhtS7WGTVEIdpy066FN0ZWRE1Qn4JF4QJoSptguSPX+ja5PllnaTtE+ODcckDcCaxL9lcLBJJiFlmdGVO6TAFHVv0Y/29vmdRsn0Ypx/+K/sdqdvxes8q05+xn+cD4IgCFZ8Ac3cVsGiczZ1AAAAAElFTkSuQmCC","orcid":"","institution":"Hunan Railway Professional Technology College","correspondingAuthor":true,"submittingAuthor":false,"prefix":"","firstName":"Xiaoli","middleName":"","lastName":"CHEN","suffix":""}],"badges":[],"createdAt":"2023-12-06 07:59:25","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-3713674/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-3713674/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":48875330,"identity":"c8d38d05-7160-4e61-a625-36182c5b034c","added_by":"auto","created_at":"2023-12-27 23:07:21","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":855048,"visible":true,"origin":"","legend":"","description":"","filename":"10.24.pdf","url":"https://assets-eu.researchsquare.com/files/rs-3713674/v1_covered_9162b339-f10e-4764-94b5-98bb5348e4f4.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Research on the Aerodynamic Performance of the External Windshield of High-Speed Trains Operating on Open Lines","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":"High-speed train, External windshield༛Aerodynamic performance༛Aerodynamic performance༛Numerical simulation","lastPublishedDoi":"10.21203/rs.3.rs-3713674/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-3713674/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eThe proportion of aerodynamic resistance in train operation resistance is increasing as the speed of the train continues to increase. 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