Unsteady heat and mass transfer in MHD flow over an oscillatory stretching surface with Soret and Dufour efects  

作　　者：Lian-Cun Zheng Xin Jin Xin-Xin Zhang Jun-Hong Zhang 

机构地区：[1]School of Mathematics and Physics,University of Science and Technology,Beijing [2]School of Mechanical Engineering,University of Science and Technology Beijing [3]Naval University of Engineering

出　　处：《Acta Mechanica Sinica》2013年第5期667-675,共9页力学学报（英文版）

基　　金：supported by the National Natural Science Foundations of China (51076012 and 51276014)

摘　　要：In this paper, we study the unsteady coupled heat and mass transfer of two-dimensional MHD fluid over a moving oscillatory stretching surface with Soret and Dufour effects. Viscous dissipation effects are adopted in the energy equation. A uniform magnetic field is applied vertically to the flow direction. The governing equations are reduced to non-linear coupled partial differential equations and solved by means of homotopy analysis method （HAM）. The effects of some physical parameters such as magnetic parameter, Dufour number, Soret number, the Prandtl num- ber and the ratio of the oscillation frequency of the sheet to its stretching rate on the flow and heat transfer characteristics are illustrated and analyzed.In this paper, we study the unsteady coupled heat and mass transfer of two-dimensional MHD fluid over a moving oscillatory stretching surface with Soret and Dufour effects. Viscous dissipation effects are adopted in the energy equation. A uniform magnetic field is applied vertically to the flow direction. The governing equations are reduced to non-linear coupled partial differential equations and solved by means of homotopy analysis method （HAM）. The effects of some physical parameters such as magnetic parameter, Dufour number, Soret number, the Prandtl num- ber and the ratio of the oscillation frequency of the sheet to its stretching rate on the flow and heat transfer characteristics are illustrated and analyzed.

关 键 词：Viscous conducted fluid Magnetic field Os- cillatory stretching surface Heat and mass transfer HAM solution 

分 类 号：O361.3[理学—流体力学]