Soret-driven thermohaline convection in dusty ferrofluids saturating a porous medium

• Autorzy: Sekar R. , Vaidyanathan G. , Hemalatha R.
• Języki publikacji: EN

Abstrakty

EN

The Soret driven thermoconvective instability in multicomponent fluids has wide applications in heat and mass transfer. This paper deals with the theoretical investigation of the effect of dust particles on a Soret-driven ferro thermohaline convection heated and soluted from below subjected to a transverse uniform magnetic field in a porous medium. The Brinkmann model is used. An exact solution is obtained for the case of two free boundaries. Both stationary and oscillatory instabilities are investigated using the linear stability analysis and normal mode technique. It is found that the system stabilizes only through stationary mode. The non-buoyancy magnetization parameter, the dust particle parameter and large values of permeability of the porous medium are found to destabilize the system. The Soret coefficient and the stable solute gradient stabilize the system. The results are presented graphically.

Słowa kluczowe

EN

ferrofluid; dust particles; soret-coefficient; magnetization; magnetic field permeability of porous medium

PL

ciecz ferromagnetyczna; magnetyzacja; pole magnetyczne

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2008
• Tom: Vol. 13, no 4
• Strony: 1003--1018
• Opis fizyczny: Bibliogr. 25 poz., wykr.

Twórcy

autor

Sekar R.

autor

Vaidyanathan G.

autor

Hemalatha R.

• Department of Mathematics, Pondicherry Engineering College Pondicherry-605 014, INDIA,

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