Exploration of the impact of MHD and porous vertical channel on heat and Mass transfer of natural convective fluid flow in the presence of heat source/sink | 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 Exploration of the impact of MHD and porous vertical channel on heat and Mass transfer of natural convective fluid flow in the presence of heat source/sink Williams Michael, Akeem Disu, Christie Yemisi Ishola This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7962529/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 present study investigates heat transfer characteristics in a magnetohydrodynamic (MHD) and porous vertical channel under natural convection with the inclusion of a heat source/sink. The governing nonlinear equations for momentum, energy, and mass transfer were solved numerically to assess the effects of key dimensionless parameters. Results indicate that increasing the magnetic parameter and permeability parameter reverses the fluid velocity due to the combined influence of Lorentz force and porous resistance. Nonlinear thermal radiation and heat generation/absorption parameters enhance heat transfer efficiency and raise temperature profiles. Moreover, greater thermal and solutal Grashof numbers intensify natural convection, improving heat and mass transfer rates. Increases in the reaction rate parameter and Schmidt number induce reverse flow, while higher stretching parameters promote momentum development. The findings provide valuable insights into coupled MHD and porous effects in convective transport systems. Magnetohydrodynamics (MHD) Porous medium Natural convection Heat source/sink Heat and mass transfer 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-7962529","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":542430485,"identity":"377ef5df-4a23-4dbc-8b2e-262261585e79","order_by":0,"name":"Williams 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