Magnetohydrodynamic Mixed Convective Flow in a Cavity

A magnetohydrodynamic mixed convective flow in a cavity was studied in this paper. The lower surface of cavity was heated from below whereas other walls of the cavity were thermally isolated. The governing two-dimensional flow equations have been solved by using finite volume code. The effects of magnetic field were studied on flow and temperature field and heat transfer performance at a wide range of parameters, Such as Hartmann (0≤Ha≤100) and Reynolds (1≤Re≤100) numbers. The results showed that as Hartman number increases the Nusselt number, representing heat transfer from the cavity decreases.




References:
[1] O. Garandet, J. P., Alboussiere, T., and Moreau, R., 1992, "Buoyancy
driven convection in a rectangular enclosure with a transverse magnetic
field," International Journal of Heat and Mass Transfer,
35, 4, pp. 741-748.
[2] Venkatachalappa, M., and Subbaraya, C. K., 1993, "Natural convection
in a rectangular enclosure in the presence of a magnetic field with uniform
heat flux from the side walls," Acta Mechanica, 96, 1-4, pp. 13-26.
[3] Alchaar, S., Vasseur, P., and Bilgen, E., 1995, "Natural convection heat
transfer in a rectangular enclosure with a transverse magnetic field,"
Journal of Heat Transfer, 117, 3, pp. 668-673.
[4] Rudraiah, N., Barron, R. M., Venkatachalappa, M., and Subbaraya, C.
K., 1995, "Effect of a magnetic field on free convection in a rectangular
enclosure," International Journal of Engineering Science, 33, 8, pp.
1075- 1084.
[5] Ghasemi, B., Aminossadati, S. M., and Raisi, A., 2011, "Magnetic field
effect on natural convection in a nanofluid-filled square enclosure,"
International Journal of Thermal Sciences, 50, 9, pp. 1748-1756.
[6] Pirmohammadi, M., Ghassemi, M., "Effect of magnetic field on
convection heat transfer inside a tilted square enclosure". International
communication in Heat and Mass Transfer 36,2009, pp. 776-780.
[7] Patankar, S.V, "Numerical Heat Transfer and Fluid Flow", Hemisphere,
Washington, DC, 1980.