文章基本信息

标题：Control of Wake and Vortex Shedding Behind Solid Circular Obstacle by Magnetohydrodynamics
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作者：Javad Abolfazli Esfahani ; Ali Kianifar ; Saman Rashidi 等
期刊名称：Journal of Thermal Engineering
电子版ISSN：2148-7847
出版年度：2015
卷号：1
期号：7
页码：593-597
出版社：Yildiz Technical University
摘要：Control of vortex shedding leads to a reduction in the unstead y forces acting on the bluff bodies and can significantl y reduce their vibrations. In this paper, the finite volume method (FVM) is used to simulate the flow around and through two - dimensional circular obstacle. An external magnetic field is applied to control the wake behind the obstacle and also to suppress the vortex shedding phenomena. Maxwell equations are applied to provide the coupling between the flow field and the magnetic field. The range of Stuart (N) and Reynolds (Re) numb ers are 0-10 and 1-200, respectively. The effect s of magnetic field on control of wake structure behind the obstacle are investigated in details. It is found that for higher Stuart numb er (i.e. N=5), drag coefficient increases rapidly by using magnetic field.
关键词：magnetic field; Stuart number; vortex shedding