Numerical investigation of cross-flow around a circular cylinder at a low-Reynolds number flow under an electromagnetic force

被引：6
作者：
Kim, SJ
Lee, CM
机构：
[1] LG Elect, Digital Appliance Res Lab, Seoul 152020, South Korea
[2] Pohang Univ Sci & Technol, Dept Mech Engn, Pohang 790784, Kyungbuk, South Korea
[3] Pohang Univ Sci & Technol, Adv Fluids Engn Res Ctr, Pohang 790784, Kyungbuk, South Korea
来源：
KSME INTERNATIONAL JOURNAL | 2002年 / 16卷 / 03期
关键词：
MHD flow; separation control; drag reduction; lift suppression; circular-cylinder flow;
D O I：
10.1007/BF03185234
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The effect of the electromagnetic force(or Lorentz force) on the flow behavior around a circular cylinder is investigated by computation. Two-dimensional unsteady flow computation for Re=10(2) is carried out using a numerical method of finite difference approximation in a curvilinear body-fitted coordinate system by solving the momentum equations including the Lorentz force as a body force, The effect of spatial variations of the Lorentz forcing region and forcing direction along the cylinder circumference is investigated. The numerical results show that the Lorentz force can effectively suppress the flow separation and oscillation of the lift force of circular cylinder cross-flow, leading to reduction of drag.
引用
收藏
页码：363 / 375
页数：13
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