Computational analysis of MHD flow, heat and mass transfer in trapezoidal porous cavity

• Main Author: Younsi Ramdane
• Format: Article
• Language: English
• Published: VINCA Institute of Nuclear Sciences 2009-01-01
• Series: Thermal Science
• Subjects: double diffusion; porous media; heat and mass transfer; magneto-hydrodynamics; finite volume method
• Online Access: http://www.doiserbia.nb.rs/img/doi/0354-9836/2009/0354-98360901013Y.pdf

Numerical simulations are conducted for two-dimensional steady-state double diffusive flow in a trapezoidal porous cavity, submitted to axial magnetic field. The Darcy equation, including Brinkmamn and Forchheimer terms account for viscous and inertia effects, respectively is used for the momentum equation, and a SIMPLER algorithm, based on finite volume approach is used to solve the pressure-velocity coupling. An extensive series of numerical simulations is conducted in the range: 103 ≤ Ra ≤ 106,1 ≤ Ha ≤ 102, Da =10-5, N = 1, and Le = 10. It is shown that the application of a transverse magnetic field normal to the flow direction decreases the Nusselt number and Sherwood number. Illustrative graphs are presented.