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International Journal of Fluid Mechanics Research

ISSN Print: 1064-2277
ISSN Online: 2152-5102

International Journal of Fluid Mechanics Research

DOI: 10.1615/InterJFluidMechRes.v32.i6.30
pages 675-690

Convection of Micropolar Heated Fluid with Rotation in Hydromagnetics

Neela Rani
Department of Mathematics, MCMDAV College Chandigarh - 160 036, India
S. K. Tomar
Department of Mathematics, Panjab University Chandigarh - 160 014, India

ABSTRACT

In this paper, the thermal instability of electrically conducting incompressible micropolar fluid heated from below in the presence of uniform magnetic field under the action of rotation in porous and non-porous medium is investigated. Frequency equations are derived and Rayleigh number is determined. It is found that in both porous and non-porous medium, the variation of Rayleigh number with wavenumber is decreasing. However, the Rayleigh number is found to increase with increase of rotation parameter. This shows that the rotation has stabilizing effect in both cases. The results of some earlier workers have been reduced from the present formulation.