Quasi-two-dimensional case studies of MHD flow and heat transfer behind a square cylinder in a duct

Abstract

In this paper, magnetohydrodynamic duct flow and heat transfer behind a square cylinder is studied numerically, using a quasi-two-dimensional (Q2D) model known as SM82. A variety of case studies are performed to signify the effects of the magnetic field intensity and the cylinder size on the total channel wall heat flux of a liquid metal (GaInSn) and the required pumping power. Comparing the results of the present study with the experimental data argued that the present Q2D model yields reliable results. Increasing the magnetic field intensity reduces the total channel wall heat flux. Current case studies show that in order to maximize heat transfer rate from the heated channel wall, one can use a larger cylinder but at the expense of greater pumping powers.