Unsteady two-layered fluid flow and heat transfer of conducting fluids in a channel between parallel porous plates under transverse magnetic field

• Autorzy: Linga Raju T. , Nagavalli M.

Identyfikatory

DOI

10.2478/ijame-2013-0043

• Języki publikacji: EN

Abstrakty

EN

The unsteady magnetohydrodynamic flow of two immiscible fluids in a horizontal channel bounded by two parallel porous isothermal plates in the presence of an applied magnetic and electric field is investigated. The flow is driven by a constant uniform pressure gradient in the channel bounded by two parallel insulating plates, one being stationary and the other oscillating, when both fluids are considered as electrically conducting. Also, both fluids are assumed to be incompressible with variable properties, viz. different viscosities, thermal and electrical conductivities. The transport properties of the two fluids are taken to be constant and the bounding plates are maintained at constant and equal temperatures. The governing equations are partial in nature, which are then reduced to the ordinary linear differential equations using two-term series. Closed form solutions for velocity and temperature distributions are obtained in both fluid regions of the channel. Profiles of these solutions are plotted to discuss the effect on the flow and heat transfer characteristics, and their dependence on the governing parameters involved, such as the Hartmann number, porous parameter, ratios of the viscosities, heights, electrical and thermal conductivities.

Słowa kluczowe

EN

magnetohydrodynamics; two-layered fluid flow/immiscible fluids; unsteady flow; oscillatory motion; heat transfer; porous plate

PL

magnetohydrodynamika; mieszanie płynów; przepływ niestacjonarny; ruch oscylacyjny; przenikanie ciepła

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2013
• Tom: Vol. 18, no. 3
• Strony: 699--726
• Opis fizyczny: Bibliogr. 36 poz., wykr.

Twórcy

autor

Linga Raju T.

• Department of Engineering Mathematics Andhra University College of Engineering (A) Visakhapatnam, Pin code: 530 003, India

autor

Nagavalli M.

• Department of Engineering Mathematics Andhra University College of Engineering (A) Visakhapatnam, Pin code: 530 003, India

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