Publication de 4 numéros par an
ISSN Imprimer: 2151-4798
ISSN En ligne: 2151-562X
Indexed in
STABILITY OF AN ANISOTROPIC POROUS LAYER WITH INTERNAL HEAT SOURCE AND BRINKMAN EFFECTS
RÉSUMÉ
The effects of the internal heat source and anisotropy in permeability on the onset of convection in a fluid layer modeled using modified Darcy's equation are analyzed using linear and nonlinear analysis for impermeable and isothermal boundaries. Normal mode technique is used for linear analysis and energy method is used for nonlinear stability analysis. The presence of heat generation and anisotropy of the medium leads to the possibility of the existence of a subcritical instability. Effects of Darcy–Brinkman number, anisotropic parameter, and internal heat parameter on the value of critical Rayleigh numbers were analyzed using Chebyshev-QZ method.
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