MHD fluctuating free convective flow with radiation embedded in porous medium having variable permeability and heat source/sink

• Autorzy: Sharma B. , Agarwal M. , Chaudhary R. C.
• Języki publikacji: EN

Abstrakty

EN

The study of free convective two-dimensional unsteady flow with radiation through a porous medium of variable permeability and transverse magnetic field in presence of a heat source/sink, bounded by an infinite vertical porous plate with uniform suction, has been made. The permeability of a porous medium fluctuates with time about a constant mean. Approximate solutions for velocity, temperature and skin friction are obtained and the effects of heat source/sink, radiation, variable permeability, Prandtl number and magnetic field parameter on velocity, temperature and skin friction are shown and discussed with the help of graphs and a table.

Słowa kluczowe

EN

free convection; heat source/sink; porous medium; MHD

PL

konwekcja swobodna; źródło ciepła; ośrodek porowaty; MHD

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Journal of Technical Physics
• Rocznik: 2006
• Tom: Vol. 47, no 1
• Strony: 47--58
• Opis fizyczny: Bibliogr. 17 poz., wykr.

Twórcy

autor

Sharma B.

autor

Agarwal M.

autor

Chaudhary R. C.

• Department of Mathematics, University of Rajasthan Jaipur-302004, India,

Bibliografia

• 1. A.C. COGLEY, W.G. VINCETI, S.E. GILLES, Differential approximation for radiation transfer in a nongray near equilibrium, AIAA J., 6, 551-553, 1968.
• 2. R.E. CUNNINGHAM, R.J. WILLIAMS, Diffusion in gases and porous media. Plenum Press, New York 1980.
• 3. T. FUJII, Theory of the steady laminar natural convection above a horizontal line heat source and a point heat source, Int. J., Heat and Mass Transfer, 6, 597-606, 1963.
• 4. A.Y. GHALY, E.M.E. ELBARBARY, Radiation effect on MHD free-convection flow of a gas at a stretching surface with a uniform free stream, J. Applied Math., 2, 93-103, 2002.
• 5. H.P. GREENSPAN, G.F. CARRIER, The magnetohydrodynamic flow past a fiat plate, 3. Fluid Mech., 6, 77-96, 1959.
• 6. S. OSTRACH, Laminar natural-convection flow and heat transfer of fluids with and without heat sources in channels with constant wall temperatures, NACA Rept., 2863, 1952.
• 7. A. RAPTIS, C. PERDIKIS, Viscoelastic flow by the presence of radiation, ZAMM, 78, 4, 277-279, 1998.
• 8. A. RAPTIS, C.P. PERDIKIS, Oscillatory flow through a porous medium the presence of free convective flow. Int. J. Engg. Sci., 23, 51-55, 1985.
• 9. A. RAPTIS, N. KAFOUSIAS, C. MASSALAS, Free convection and mass transfer flow through a porous medium bounded by an infinite vertical porous plate with constant heat flux, ZAMM, 62, 489-491, 1982.
• 10. A. RAPTIS, G. TZIVANIDIS, N. KAPOUSIAS, Free convection and mass transfer flow through a porous medium bounded by an infinite vertical limiting surface with constant suction. Let. Heat and Mass Transfer, 8, 417-424, 1981.
• 11. A. RAPTIS, Unsteady free convective flow through aporous medium. Int. J. Engg. Sci., 21, 345-348, 1983.
• 12. N. RUDRAIAH, B.C. CHANDRASEKHARA, R. VEERABHADRAIAH, S.T. NAGARAJ, PGSAM Series, Asian Printers, Bangalore 1979.
• 13. K.D. SINGH, S. KUMAR, The effect of permeability variation on free convective flow through a porous medium bounded by an infinite vertical porous plate with constant suction. Journal Math. Phys. Sci., 27, 141, 1993.
• 14. K.D. SINGH, Hydromagnetic effects on the three-dimensional flow past a porous plate, ZAMP, 41, 441-446, 1990.
• 15. K.D. SINGH, Three-dimensional MHD oscillators/flow past a porous plate, ZAMM, 71, 192-195, 1991.
• 16. H.S. TAKHAR, R.S.R. GORLA, V.M. SOUNDALGEKAR, Radiation effects on MHD free convection flow of a gas past a semi-infinite vertical plate, Int. J. Num. Methods for Heat and Fluid Flow, 16, 77-83,1996.
• 17. TITO DIAS JR., L.F. MILANEZ, Natural convection due to a heat source on a vertical plate, Int. J. Heat and Mass Transfer, 47, 1227-1232, 2004.