WAVE-PROPAGATION IN 2-PHASE FLOW OF MAGNETIC FLUID UNDER A NONUNIFORMMAGNETIC-FIELD

The effect of nonuniform magnetic field on the linear and nonlinear wa ve propagation phenomena in two-phase pipe how of magnetic fluid is in vestigated theoretically to realize the effective energy conversion sy stem using boiling two-phase how of magnetic fluid. Firstly, the gover ning equations of two-phase flow based on the unsteady thermal nonequi librium two-fluid model are presented and the linear void wave propaga tion phenomena in boiling two-phase flow are numerically analyzed by u sing the finite volume method. Next, the nonlinear pressure wave propa gation in gas-liquid two-phase flow is numerically analyzed by using t he finite different method. According to these theoretical studies on the wave propagation phenomena in two-phase how of magnetic fluid, it seems to be a reasonable proposal that the precise control of the wave propagation in two-phase flow is possible by effective use of the mag netic force. (C) 1997 Elsevier Science S.A.