{"paper_id":"4cad8f9d-b950-4f58-bfbd-8728d41b7bcc","body_text":"Experimental and Numerical Study on Jet Sand Bed Erosion | 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 Article Experimental and Numerical Study on Jet Sand Bed Erosion Jiang Shengqun, Yue Jixiang, Tian Xinghui, Liu Yancong This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-3872266/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 Water jet technique is widely used in the dredging of rivers and canals, and has significant engineering value. This work develops the sediment dynamic model to build a velocity-based bed load sediment transport model. The process of low-pressure water jet river bed erosion was investigated at various water jet pressures and nozzle outlet diameters, with the Shields Parameter serving as the sediment initiation threshold. The process of developing a flow scour pit is divided into three key stages: particle triggering, quick development, and dynamic equilibrium. A transient simulation of submerged three-dimensional jet erosion was performed using a mixture model in Fluent software, with the laboratory physical model parameters as reference. The numerical simulation findings that the erosion sand pit characteristic parameters agreed with experimental data, and the particle initiation model was also confirmed. An empirical formula was established based on numerical modeling and experimental data to estimate the characteristic size of the scouring pit during jet erosion equilibrium. Physical sciences/Engineering Physical sciences/Engineering/Mechanical engineering Earth and environmental sciences/Hydrology Water jet Jet erosion Numerical simulation Shields Parameter 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-3872266\",\"acceptedTermsAndConditions\":true,\"allowDirectSubmit\":true,\"archivedVersions\":[],\"articleType\":\"Article\",\"associatedPublications\":[],\"authors\":[{\"id\":267571828,\"identity\":\"83312422-64b0-439b-b2ce-f0faf34a074e\",\"order_by\":0,\"name\":\"Jiang Shengqun\",\"email\":\"\",\"orcid\":\"\",\"institution\":\"China University of Petroleum\",\"correspondingAuthor\":false,\"prefix\":\"\",\"firstName\":\"Jiang\",\"middleName\":\"\",\"lastName\":\"Shengqun\",\"suffix\":\"\"},{\"id\":267571829,\"identity\":\"ffeffcf6-de30-40b6-9615-ad0e3422702c\",\"order_by\":1,\"name\":\"Yue Jixiang\",\"email\":\"\",\"orcid\":\"\",\"institution\":\"Shandong Institute of Petroleum and Chemical Technology\",\"correspondingAuthor\":false,\"prefix\":\"\",\"firstName\":\"Yue\",\"middleName\":\"\",\"lastName\":\"Jixiang\",\"suffix\":\"\"},{\"id\":267571830,\"identity\":\"08c60426-b731-442d-b1a4-5a4bc28d101b\",\"order_by\":2,\"name\":\"Tian Xinghui\",\"email\":\"\",\"orcid\":\"\",\"institution\":\"China University of Petroleum\",\"correspondingAuthor\":false,\"prefix\":\"\",\"firstName\":\"Tian\",\"middleName\":\"\",\"lastName\":\"Xinghui\",\"suffix\":\"\"},{\"id\":267571831,\"identity\":\"a6bc6d03-8b9c-433e-8398-fe68796cd96c\",\"order_by\":3,\"name\":\"Liu Yancong\",\"email\":\"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA2klEQVRIiWNgGAWjYBACPigtx8befABIS8gQ1MIGpY35eY4lgLTwEK0lUXJGjgGIQYQWieRn0gU1DAkGN3I+v7pRY8HDwH746Ab8WtLMpGccY8gzOPN2m3XOMaDDeNLSbuDXksMmzdvAUGxwPHebcQ4bUIsEjxlRWhI3HMh5ZpzzjxQtMztymB/nthGjheeZsfWMYxKgQDZjzu2T4GEj5Bd+9uSHtwtqbEBR+fhzzrc6OX72w8fwamEQSGBgBsYgxJFgEq9ysDUHQFrAgPkDQdWjYBSMglEwIgEA6Xo+sWYR+xMAAAAASUVORK5CYII=\",\"orcid\":\"\",\"institution\":\"China University of Petroleum\",\"correspondingAuthor\":true,\"prefix\":\"\",\"firstName\":\"Liu\",\"middleName\":\"\",\"lastName\":\"Yancong\",\"suffix\":\"\"}],\"badges\":[],\"createdAt\":\"2024-01-17 08:14:11\",\"currentVersionCode\":1,\"declarations\":\"\",\"doi\":\"10.21203/rs.3.rs-3872266/v1\",\"doiUrl\":\"https://doi.org/10.21203/rs.3.rs-3872266/v1\",\"draftVersion\":[],\"editorialEvents\":[],\"editorialNote\":\"\",\"failedWorkflow\":false,\"files\":[{\"id\":50700344,\"identity\":\"d48c4571-dd65-4ebe-8680-be288ff0084d\",\"added_by\":\"auto\",\"created_at\":\"2024-02-06 04:08:27\",\"extension\":\"pdf\",\"order_by\":1,\"title\":\"\",\"display\":\"\",\"copyAsset\":false,\"role\":\"manuscript-pdf\",\"size\":1770952,\"visible\":true,\"origin\":\"\",\"legend\":\"\",\"description\":\"\",\"filename\":\"manuscript.pdf\",\"url\":\"https://assets-eu.researchsquare.com/files/rs-3872266/v1_covered_2c045e00-4bc3-45bf-b54e-5c2577391211.pdf\"}],\"financialInterests\":\"No competing interests reported.\",\"formattedTitle\":\"Experimental and Numerical Study on Jet Sand Bed Erosion\",\"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\":\"info@researchsquare.com\",\"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\":\"Water jet, Jet erosion, Numerical simulation, Shields Parameter\",\"lastPublishedDoi\":\"10.21203/rs.3.rs-3872266/v1\",\"lastPublishedDoiUrl\":\"https://doi.org/10.21203/rs.3.rs-3872266/v1\",\"license\":{\"name\":\"CC BY 4.0\",\"url\":\"https://creativecommons.org/licenses/by/4.0/\"},\"manuscriptAbstract\":\"\\u003cp\\u003eWater jet technique is widely used in the dredging of rivers and canals, and has significant engineering value. 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