Numerical simulation of the effect of urban transportation on the spread of air pollution in the residential part of city

Numerical simulation of the effect of urban transportation on the spread of air pollution in the residential part of city | 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 the effect of urban transportation on the spread of air pollution in the residential part of city Ehsan Shadman, Pezhman Bahmani Nia This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-3202005/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 Today, the main focus of human society is on environmental protection, and the observance of environmental standards in order to continue human life on Earth is an important and serious concern. The share of cars in large cities in the production and emission of air pollutants is about 70%, and this share is mainly due to fossil fuels. In the present paper, the behavior of air pollution in a part of the city is simulated by considering the wind pattern using computational fluid dynamics. The K-epsilon turbulence model was employed for the simulation. The governing equations for viscous flow included continuity equation, momentum, and turbulence model equations. CFD (Computational fluid dynamics) modeling provides a good description of flow field variables anywhere in the region with details. The resulting mathematical models and fluid flow patterns can be used in research and development, design, and even engineering economics. This simulation of the environment in the form of environmental models has many benefits, including accuracy and speed of modeling, especially using today's computers. Using the results of this simulation, researchers, authorities and policymakers can test the effects of new programs and ideas without spending time and time in the real world. In fact, by modeling instead of crisis management, you can predict or plan the risk. CFD CO2 dispersion air pollution urban transportation 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-3202005","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":222185165,"identity":"001d90ba-c906-435d-896c-c02d412f60e4","order_by":0,"name":"Ehsan Shadman","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA+UlEQVRIiWNgGAWjYDACCQiVAEYMFUDMzsDA2EC8ljMMDDzMJGlhbCNCC790+8PPBQx1efzt2YmfC+fZJO5nZj74cAaDnZwuDn2Sc84YS89gOFwscebtZumZ29ISe5jZkg03MCQbmx3ArsXgRg6DNA/DgcSGG7kbpHm3HQZq4TGTfAAU2YZDi/2N9Me/eRjqEuffyN38m3cOEVoMJBLMgLYwJ264kbtNmrcBqmUDHi0SN3LMrHkMDiduPPN2mzXPsTTjnsNAv8wwwO0X/hnpj2/zVNQlzjueu/k2T42NbHt788GHPRV2cri0QJ1HhMgoGAWjYBSMAhIAAPNdW9Kqa/gRAAAAAElFTkSuQmCC","orcid":"","institution":"Lucerne University of Applied Sciences and Arts","correspondingAuthor":true,"submittingAuthor":false,"prefix":"","firstName":"Ehsan","middleName":"","lastName":"Shadman","suffix":""},{"id":222185166,"identity":"b79e3e88-02d1-4749-9505-33699ba76447","order_by":1,"name":"Pezhman Bahmani Nia","email":"","orcid":"","institution":"Islamic Azad University of Tehran (Tehran Central branch)","correspondingAuthor":false,"submittingAuthor":false,"prefix":"","firstName":"Pezhman","middleName":"Bahmani","lastName":"Nia","suffix":""}],"badges":[],"createdAt":"2023-07-25 08:14:42","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-3202005/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-3202005/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[],"financialInterests":"No competing interests reported.","formattedTitle":"Numerical simulation of the effect of urban transportation on the spread of air pollution in the residential part of city","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":true,"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":"CFD, CO2 dispersion, air pollution, urban transportation","lastPublishedDoi":"10.21203/rs.3.rs-3202005/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-3202005/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eToday, the main focus of human society is on environmental protection, and the observance of environmental standards in order to continue human life on Earth is an important and serious concern. 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