Study on the instability of FC-72 vapor-liquid interface in a rectangular channel under different gravity conditions

Study on the instability of FC-72 vapor-liquid interface in a rectangular channel under different gravity conditions | 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 Study on the instability of FC-72 vapor-liquid interface in a rectangular channel under different gravity conditions Leigang Zhang, Bo Xu, Zhenqian Chen, Guopei Li, Yonghai Zhang, and 1 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4437913/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 22 Aug, 2024 Read the published version in Microgravity Science and Technology → Version 1 posted 9 You are reading this latest preprint version Abstract This paper investigates the instability of FC-72 vapor-liquid interface in a rectangular channel under different gravity conditions employing short-term microgravity experimental systems designed based on the drop tower platform. Visual observations and numerical simulations were conducted to monitor the behavior of vapor-liquid interface. The study reveals significant fluctuations, with liquid climbing along both sides of the channel after drop cabin releases. Higher initial liquid levels result in increased maximum liquid phase heights and decreased minimum values, with noticeable fluctuations. In microgravity, the maximum height gradually rises with significant fluctuations, while minimum height remains relatively stable. Increasing contact angle leads to reduced variation in maximum and minimum heights, with a distinctive upward slope of vapor-liquid interface observed at a 90° contact angle. The temporal evolution of the vapor-liquid interface observed in simulations closely aligns with experimental findings. This study highlights the importance of considering various factors in designing experiments involving fluid systems with low surface tension, particularly in aerospace applications, and calls for further research to develop more sophisticated models and techniques for understanding and controlling vapor-liquid interface instability. instability FC-72 vapor-liquid interface microgravity contact angle Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Published Journal Publication published 22 Aug, 2024 Read the published version in Microgravity Science and Technology → Version 1 posted Editorial decision: Revision requested 10 Jun, 2024 Reviews received at journal 09 Jun, 2024 Reviews received at journal 01 Jun, 2024 Reviewers agreed at journal 01 Jun, 2024 Reviewers agreed at journal 28 May, 2024 Reviewers invited by journal 28 May, 2024 Submission checks completed at journal 20 May, 2024 Editor assigned by journal 20 May, 2024 First submitted to journal 17 May, 2024 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-4437913","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":307985322,"identity":"9beac0f3-9d6c-42be-a251-fa52af9c11d9","order_by":0,"name":"Leigang Zhang","email":"","orcid":"","institution":"Zhengzhou University of Light Industry","correspondingAuthor":false,"prefix":"","firstName":"Leigang","middleName":"","lastName":"Zhang","suffix":""},{"id":307985325,"identity":"0d1062fe-1e7d-45b3-b474-15cd36740b02","order_by":1,"name":"Bo Xu","email":"","orcid":"","institution":"Southeast 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