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Hall effect on thermal instability of Rivlin-Ericksen fluid in porous medium

Sharma R. C., Thakur K. D.

Applied Mechanics and Engineering

2000

Vol. 5, no 2

355-366

The thermal instability of electrically conducting Rivlin-Ericksen elastico-viscous fluid in porous medium is considered to include the Hall current in the presence of a vertical magnetic field. For the stationary convection, the Rivlin-Ericksen elastico-viscous fluid behaves like a viscous (Newtonian) fluid. The Hall current and medium permeability are found to have destabilizing effect, whereas the magnetic field has a stabilizing effect on the thermal instability problem for stationary convection. A sufficient condition for the non-existence of overstability is obtained.