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=RaT=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.

Numerical simulation of natural convection using unsteady compressible Navier-stokes equations

“…The set of the governing equations is linearized using successive linearization methods and then solved by Chebyshev method. Rahman et al (2016) performed a numerical analysis using finite element method on the natural convection heat and mass transfer in inclined semi-circular enclosures. They studied the effect of magnetic field and inclination angle on the heat and mass transfer in a curvilinear geometry.…”