THERMAL-INSTABILITY OF COMPRESSIBLE FLUIDS WITH HALL CURRENTS AND SUSPENDED PARTICLES IN POROUS-MEDIUM

The thermal instability of compressible fluids in porous medium is con sidered to include the effects of Hall currents and suspended particle s. The dispersion relation has been obtained. For the stationary conve ction, Hall currents and suspended particles are found to have destabi lizing effects whereas compressibility and magnetic field have stabili zing effects on the system. The medium permeability, however, has stab ilizing and destabilizing effects on thermal instability in contrast t o its destabilizing effect in the absence of magnetic field. The magne tic field and Hall currents are found to introduce oscillatory modes i n the system.