Magnetohydrodynamic time-dependent computational natural convection flow, heat and mass transfer in inclined semi-circular enclosures

Abstract

Purpose

The purpose of this paper is to make a numerical analysis on unsteady analysis of natural convection heat and mass transfer to obtain flow field, temperature distribution, and concentration distribution.

Design/methodology/approach

A finite element method is applied to solve governing equations of natural convection in curvilinear-shaped system for different parameters as thermal Rayleigh numbers (103=Ra_T=106), inclination angle (0°=φ=60°) and Hartmann numbers (0=Ha=100).

Findings

Both magnetic field and inclination angle can be used as control parameter on heat and mass transfer. Flow strength decreases almost 100 percent between Ha=0 and Ha=100 on behalf of the higher values of thermal Rayleigh number.

Originality/value

The originality of this work is to application of magnetic field on time-dependent natural convection flow, heat and mass transfer for curvilinear geometry.

Citation

Rahman, M.M., Öztop, H.F., Saidur, R., Naim, A.G., Al-Salem, K.S. and Ibrahim, T.A. (2016), "Magnetohydrodynamic time-dependent computational natural convection flow, heat and mass transfer in inclined semi-circular enclosures", International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 26 No. 8, pp. 2310-2330. https://doi.org/10.1108/HFF-06-2015-0252