Magnetohydrodynamic Mixed Convective Flow in a Cavity

Authors: R.YadollahiFarsani, B. Ghasemi

Abstract:

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.

Keywords: Cavity, Magnetic Field, Mixed Convection, Magnetohydrodynamic

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1335188

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.