Unsteady MHD Mixed Convection Flow with Heat and Mass Transfer over a Vertical Plate in a Micropolar Fluid-Saturated Porous Medium

The combined effects of Soret and Dufour on an unsteady mixed convection magnetohydrodynamics heat and mass transfer in a micropolar fluid saturated Darcian porous medium in the presence of thermal radiation, heat generation, Ohmic heating and chemical reaction have been investigated. The transformed boundary layer equations are solved numerically by applying Keller-box method. Comparison of numerical results is made with the previous published results under limiting cases and found to be in good agreement. In this study, we consider both strong concentration and weak concentration. The influence of various embedded flow parameters on the local skin friction, the local Nusselt number and the local Sherwood number have been analyzed through graphs carefully. It is found that there is a smooth transition from small time solution (ξ≈0) to large time solution (ξ≈1).

並列關鍵字

Soret and Dufour ； Micropolar Fluid ； Porous Medium ； MHD

參考文獻

Mahmoud, M. A. A., Abd-Elaty, M. M. and Waheed, S. E., “Hydromagnetic Boundary Layer Micropolar Fluid Flow Over a Stretching Surface Embedded in a Non-Darcian Porous Medium with Radiation,” Mathem. Prob. Engng., pp. 1 10 (2006). doi: 10.1155/ MPE/2006/39392

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延伸閱讀

Rout, B. R., Parida, S. K., & Panda, S. (2013). MHD Heat and Mass Transfer of Chemical Reaction Fluid Flow over a Moving Vertical Plate in Presence of Heat Source with Convective Surface Boundary Condition. International Journal of Chemical Engineering, 2013(), 23-32. https://doi.org/10.1155/2013/296834
Chen, C. K., Wang, I. J., & Cheng, C. Y. (2007). Transient Mixed Convection Heat and Mass Transfer with Chemical Reaction along a Vertical Wavy Plate in a Micropolar Fluid. 中國機械工程學刊, 28(1), 71-80. https://doi.org/10.29979/JCSME.200702.0009
Attia, H. A. (2011). On the Effectiveness of Porosity on Unsteady Mixed Convection Flow along an Infinite Vertical Porous Plate with Heat and Mass Transfer. 淡江理工學刊, 14(4), 285-291. https://doi.org/10.6180/jase.2011.14.4.01
Shrama, P. R., & Singh, G. (2010). Steady MHD Natural Convection Flow with Variable Electrical Conductivity and Heat Generation along an Isothermal Vertical Plate. 淡江理工學刊, 13(3), 235-242. https://doi.org/10.6180/jase.2010.13.3.02
Sahoo, S. N. (2013). Heat and Mass Transfer Effect on MHD Flow of a Viscoelastic Fluid through a Porous Medium Bounded by an Oscillating Porous Plate in Slip Flow Regime. International Journal of Chemical Engineering, 2013(), 72-79. https://doi.org/10.1155/2013/380679

國際替代計量

Unsteady MHD Mixed Convection Flow with Heat and Mass Transfer over a Vertical Plate in a Micropolar Fluid-Saturated Porous Medium

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