Magnetohydrodynamic Beltrami Flows

Abstract

Magnetohydrodynamic (hereafter called MHD) non-steady Beltrami flow between two infinite parallel walls is discussed with an impressed magnetic field transverse to the walls. Exact solutions of modified Navier-Stokes equations are obtained using both Laplace transform and normal mode methods. Expressions for the induced magnetic field and the skin-friction are also obtained. Numerical values of velocity, skin friction and induced magnetic field are calculated for different values of Hartmann number at different times and the results are tabulated and several conclusions are drawn.