Thermal convection problem of micropolar fluid subjected to hall current |
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Authors: | Neela Rani SK Tomar |
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Institution: | aDepartment of Mathematics, MCMDAV College, Chandigarh 160 036, India;bDepartment of Mathematics, Panjab University, Chandigarh 160 014, India |
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Abstract: | Thermal instability of a micropolar fluid layer heated from below in the presence of hall currents is investigated. Using the appropriate boundary conditions on the boundary surfaces of the fluid layer, the frequency equation is derived and then critical Rayleigh number is determined. It is found that hall current parameter has destabilizing effect on the system. For specific values of parameters, oscillatory convection in observed in the system. The behavior of Rayleigh number with wavenumber is also computed for different values of various parameters. The results of some earlier workers have been reduced as a special case from the present problem. |
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Keywords: | Micropolar Convection Rayleigh number Hall currents Wavenumber Magnetic |
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