穿孔对平板微涡发生器涡特性的影响

IF 1.8 3区工程技术 Q3 ENGINEERING, MECHANICAL

Journal of Fluids Engineering-Transactions of the Asme Pub Date : 2023-11-07 DOI:10.1115/1.4064009

Abhishek Khare, Shashank Khurana

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引用次数: 0

摘要

摘要本文研究了平板微涡发生器(MVG)的穿孔对其下游涡特性的影响。在MVG上的不同位置，单个矩形MVG带有圆形和方形穿孔，安装在平板上，与流动方向成16度安装角。基于MVG高度和自由流速度，将MVG置于湍流边界层内，雷诺数为16293。使用Reynolds平均Navier-Stokes (RANS)模型进行分析。分析结果表明，当射孔位于MVG的中心和下侧时，MVG涡最有效。有孔位置的MVG涡强度明显高于无孔位置的MVG。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Effect of Perforation on Vortex Characteristics of a Micro-Vortex Generator Mounted on a Flat Plate

Abstract The effects of perforation on the characteristics of the downstream vortex of a micro-vortex generator (MVG) mounted on a flat plate, are numerically investigated in this paper. A single rectangular MVG with circular and square perforation, at different locations on the MVG, is mounted on a flat plate at 16 degree installation angle with respect to the flow direction. The MVG is placed inside a turbulent boundary layer at Reynolds number of 16293 based on MVG height and free-stream velocity. Analysis is conducted using the Reynolds Averaged Navier-Stokes (RANS) modeling. The results of the analysis show that the MVG vortex is most effective when the perforation is located at the center and lower side of the MVG. The vortex strength for MVG with this perforated location is found to be much higher than the MVG without any perforation.

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来源期刊

Journal of Fluids Engineering-Transactions of the Asme 工程技术-工程：机械

CiteScore

4.60

自引率

10.00%

发文量

165

审稿时长

5.0 months

期刊介绍： Multiphase flows; Pumps; Aerodynamics; Boundary layers; Bubbly flows; Cavitation; Compressible flows; Convective heat/mass transfer as it is affected by fluid flow; Duct and pipe flows; Free shear layers; Flows in biological systems; Fluid-structure interaction; Fluid transients and wave motion; Jets; Naval hydrodynamics; Sprays; Stability and transition; Turbulence wakes microfluidics and other fundamental/applied fluid mechanical phenomena and processes