A novel hypothesis of violent storm sewer geyser | 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 A novel hypothesis of violent storm sewer geyser Pratik Mahyawansi, Sumit R. Zanje, Abbas Sharifi, Dwayne McDaniel, and 1 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-6191408/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 A violent geyser in a storm sewer is a phenomenon in which an air-water mixture violently erupts from the manhole. Although the sewer tunnel pressure is low, the eruption height can reach tens of meters above the ground. This article proposes a new hypothesis: that these geysers are produced due to interfacial instabilities of the stormwater draining down the deep vertical pipe. Numerical simulations were able to reproduce geyser characteristics, such as eruption height, geyser timing, and frequency, similar to actual sewer geysers. In addition, the role of the water level on the pavement in influencing geyser characteristics is also investigated. Physical sciences/Engineering/Civil engineering Physical sciences/Engineering/Mechanical engineering Physical sciences/Physics/Fluid dynamics Earth and environmental sciences/Environmental sciences/Environmental impact Geyser Environmental flows instability Multiphase flows Full Text Additional Declarations No competing interests reported. Supplementary Files CompressedGeyserVideo.avi Legend.png Videocaption.docx 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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