Evolution law of wind-sand flow field of multi-row reed sand barriers and optimal spacing

Evolution law of wind-sand flow field of multi-row reed sand barriers and optimal spacing | 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 Evolution law of wind-sand flow field of multi-row reed sand barriers and optimal spacing An Yuanfeng, Cheng Jianjun, Lusheng Ding, Boyu Chen, Li Gao, Jia Lei, and 2 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-2353630/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 27 Sep, 2023 Read the published version in Natural Hazards → Version 1 posted 5 You are reading this latest preprint version Abstract The multi-row sand barriers have been widely concerned about their high efficiency wind and sand prevention effect in the sand blown prevention and control for road engineering. The spacing between sand barriers is the primary issue to be resolved in the arrangement of multi-row sand barriers. This study considered the reed sand barrier protection project of Xinjiang segment of Golmud-Korla railway as the research object, revealed the evolution characteristics of flow field and distribution laws of sand accumulation under the control of three-row sand barriers spacing by field observation, wind tunnel test and numerical simulation, and the optimal spacing of three-row reed sand barriers was explored by Design Exploration optimization analysis method. The results indicated the flow field presented a typically superimposed morphology of deceleration zones, acceleration zones, and recovery zones when airflow passed through the reed sand barrier. There was no deceleration zone ahead the second and third-row sand barriers before optimization; the flow field distribution was complete and each-row sand barrier can have a synergistic role in wind and sand prevention after optimization. The optimal spacing between three-row sand barriers decreases as wind velocity increases. The optimal spacing between sand barriers corresponding to 10 m s − 1 , 15 m s − 1 and 20 m s − 1 wind velocity is 25.5m, 24m and 20.0m respectively. The sand-blocking rates of corresponding reed sand barriers were 84.53%, 64.42% and 47.51%, which were 8.54%, 20.77% and 0.78% higher than before optimization, respectively. Therefore, it was suggested that the spacing of three rows reed sand barriers is 20 ~ 25 m in the survey region, so that each-row sand barriers can play a role. Reed sand barrier Wind-sand flow Numerical Simulation Wind Tunnel test Optimization design optimal spacing Full Text Cite Share Download PDF Status: Published Journal Publication published 27 Sep, 2023 Read the published version in Natural Hazards → Version 1 posted Editorial decision: Minor revisions 07 Aug, 2023 Reviewers agreed at journal 14 Jul, 2023 Reviewers invited by journal 20 Jan, 2023 Editor assigned by journal 09 Dec, 2022 First submitted to journal 08 Dec, 2022 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-2353630","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":169504233,"identity":"d51ba18d-0871-42e2-a1e6-e970b12aa1bb","order_by":0,"name":"An 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The spacing between sand barriers is the primary issue to be resolved in the arrangement of multi-row sand barriers. This study considered the reed sand barrier protection project of Xinjiang segment of Golmud-Korla railway as the research object, revealed the evolution characteristics of flow field and distribution laws of sand accumulation under the control of three-row sand barriers spacing by field observation, wind tunnel test and numerical simulation, and the optimal spacing of three-row reed sand barriers was explored by Design Exploration optimization analysis method. The results indicated the flow field presented a typically superimposed morphology of deceleration zones, acceleration zones, and recovery zones when airflow passed through the reed sand barrier. 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