Double diffusive convection in a high porosity anisotropic porous medium with externally regulated darcy and brinkman frictions

• Autorzy: Siddheshwar P. G. , Vanishree R. K.
• Języki publikacji: EN

Abstrakty

EN

A linear stability analysis is performed on the double diffusive porous system using the Rayleigh-Ritz technique. The condition for direct and Hopf bifurcations is obtained as a function of the parameters of the problem. A unique feature in this problem is that Darcy and Brinkman friction are temperature-dependent and hence are amenable to regulation. The study reveals that this external regulation of convection results in a preference for stationary convection over oscillatory mode. A low-porosity medium results for "finger" and "diffusive" instabilities are also discussed in the case of constant viscosity liquids.

Słowa kluczowe

EN

double diffusive convection; anisotropic porous medium; temperature dependent viscosity

PL

anizotropowy ośrodek porowaty; temperatura lepkości; konwekcja

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2011
• Tom: Vol. 16, no 4
• Strony: 1147--1168
• Opis fizyczny: Bibliogr. 43 poz., tab., wykr.

Twórcy

autor

Siddheshwar P. G.

autor

Vanishree R. K.

• Department of Mathematics, Central College Campus Bangalore University Bangalore-560 001, INDIA,

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