{"title":"Influence of a Snow Cover on Hydrodynamic Loads of a Slender Body Moving in Fluid beneath an Ice Cover","authors":"V. L. Zemlyak, V. M. Kozin, A. V. Pogorelova","doi":"10.1134/s0015462824602274","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The motion of a slender body in fluid beneath an ice cover coated with wet snow is considered. It is assumed that the fluid is ideal and incompressible, and the fluid flow is potential. The ice cover is modeled by a viscoelastic floating plate, the snow cover is modeled by a viscous layer. Formulas for calculating the wave resistance, the lift force, and the trimming moment exerted on a slender body which moves unsteadily and rectilinearly in fluid beneath the ice and snow covers are analytically obtained. A numerical analysis of the results shows that the snow cover reduces the absolute values of the extrema of hydrodynamic loads. The combined influence of increase in the snow-cover thickness, decrease in the depth of body’s submergence, increase in the ice-cover thickness, and decrease in the depth of water basin on the magnitude of hydrodynamic loads is analyzed.</p>","PeriodicalId":560,"journal":{"name":"Fluid Dynamics","volume":null,"pages":null},"PeriodicalIF":1.0000,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Fluid Dynamics","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1134/s0015462824602274","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MECHANICS","Score":null,"Total":0}
引用次数: 0
Abstract
The motion of a slender body in fluid beneath an ice cover coated with wet snow is considered. It is assumed that the fluid is ideal and incompressible, and the fluid flow is potential. The ice cover is modeled by a viscoelastic floating plate, the snow cover is modeled by a viscous layer. Formulas for calculating the wave resistance, the lift force, and the trimming moment exerted on a slender body which moves unsteadily and rectilinearly in fluid beneath the ice and snow covers are analytically obtained. A numerical analysis of the results shows that the snow cover reduces the absolute values of the extrema of hydrodynamic loads. The combined influence of increase in the snow-cover thickness, decrease in the depth of body’s submergence, increase in the ice-cover thickness, and decrease in the depth of water basin on the magnitude of hydrodynamic loads is analyzed.
期刊介绍：
Fluid Dynamics is an international peer reviewed journal that publishes theoretical, computational, and experimental research on aeromechanics, hydrodynamics, plasma dynamics, underground hydrodynamics, and biomechanics of continuous media. Special attention is given to new trends developing at the leading edge of science, such as theory and application of multi-phase flows, chemically reactive flows, liquid and gas flows in electromagnetic fields, new hydrodynamical methods of increasing oil output, new approaches to the description of turbulent flows, etc.
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