{"title":"后面有平板的圆柱体的阻力系数","authors":"V. A. Frolov, Le Van Ha","doi":"10.1134/S0021894423060081","DOIUrl":null,"url":null,"abstract":"<p>A passive method for reducing the drag of a cylinder by placing a flat plate behind it at a Reynolds number Re=10<sup>5</sup> has been studied. The paper presents the results of an ANSYS Fluent simulation of the flow around a cylinder–plate system, including the velocity and pressure fields, streamlines, and the dependences of the drag coefficient and the position of the separation point on the surface of the cylinder on the relative length of the plate. It has been found that the drag coefficient of the cylinder–plate system can be reduced by approximately 40% compared to the case of an isolated cylinder.</p>","PeriodicalId":608,"journal":{"name":"Journal of Applied Mechanics and Technical Physics","volume":"64 6","pages":"993 - 999"},"PeriodicalIF":0.5000,"publicationDate":"2024-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"DRAG COEFFICIENT OF A CYLINDER WITH A FLAT PLATE PLACED BEHIND IT\",\"authors\":\"V. A. Frolov, Le Van Ha\",\"doi\":\"10.1134/S0021894423060081\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>A passive method for reducing the drag of a cylinder by placing a flat plate behind it at a Reynolds number Re=10<sup>5</sup> has been studied. The paper presents the results of an ANSYS Fluent simulation of the flow around a cylinder–plate system, including the velocity and pressure fields, streamlines, and the dependences of the drag coefficient and the position of the separation point on the surface of the cylinder on the relative length of the plate. It has been found that the drag coefficient of the cylinder–plate system can be reduced by approximately 40% compared to the case of an isolated cylinder.</p>\",\"PeriodicalId\":608,\"journal\":{\"name\":\"Journal of Applied Mechanics and Technical Physics\",\"volume\":\"64 6\",\"pages\":\"993 - 999\"},\"PeriodicalIF\":0.5000,\"publicationDate\":\"2024-02-13\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Applied Mechanics and Technical Physics\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://link.springer.com/article/10.1134/S0021894423060081\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"MECHANICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Applied Mechanics and Technical Physics","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1134/S0021894423060081","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MECHANICS","Score":null,"Total":0}
DRAG COEFFICIENT OF A CYLINDER WITH A FLAT PLATE PLACED BEHIND IT
A passive method for reducing the drag of a cylinder by placing a flat plate behind it at a Reynolds number Re=105 has been studied. The paper presents the results of an ANSYS Fluent simulation of the flow around a cylinder–plate system, including the velocity and pressure fields, streamlines, and the dependences of the drag coefficient and the position of the separation point on the surface of the cylinder on the relative length of the plate. It has been found that the drag coefficient of the cylinder–plate system can be reduced by approximately 40% compared to the case of an isolated cylinder.
期刊介绍：
Journal of Applied Mechanics and Technical Physics is a journal published in collaboration with the Siberian Branch of the Russian Academy of Sciences. The Journal presents papers on fluid mechanics and applied physics. Each issue contains valuable contributions on hypersonic flows; boundary layer theory; turbulence and hydrodynamic stability; free boundary flows; plasma physics; shock waves; explosives and detonation processes; combustion theory; multiphase flows; heat and mass transfer; composite materials and thermal properties of new materials, plasticity, creep, and failure.
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