Hall effect on thermal instability of Walters' (model B?) fluid in a porous medium

• Autorzy: Sunil , Kumar P.
• Języki publikacji: EN

Abstrakty

EN

The thermal instability of Walters' (model B') fluid in a porous medium is considered in the presence of a uniform vertical magnetic field to include the effect of Hall currents. For the case of stationary convection, the magnetic field has the stabilizing effect on the system, whereas the Hall currents have destabilizing effect on the system. The porous medium permeability has both stabilizing and destabilizing effects on the system depending on the Hall parameter M. The kinematic viscoelasticity has no effect on stationary convection. The kinematic viscoelasticity and magnetic field (and corresponding Hall currents) introduce oscillatory modes in the system, which were nonexistent in their absence. The sufficient conditions for the non-existence of overstability are also obtained.

Słowa kluczowe

EN

Hall effect; thermal instability; Walters' (model B') fluid; porous medium

PL

hydromechanika

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: Applied Mechanics and Engineering
• Rocznik: 2000
• Tom: Vol. 5, no 3
• Strony: 655--671
• Opis fizyczny: Bibliogr. 12 poz., wykr.

Twórcy

autor

Sunil

autor

Kumar P.

• Regional Engineering College, Department of Applied Sciences, Hamirpur (H.P.) - 177 005, INDIA