化学反应对流过半无限垂直多孔板的粘性耗散非定常磁流体流动的影响  

Chemical Reaction Effects on an Unsteady MHD Flow Past a Semi-Infinite Vertical Porous Plate With Viscous Dissipation

作　　者：J.A.饶 S.施崴阿赫 

机构地区：[1]奥斯曼尼阿大学数学系 [2]B.V.拉朱技术学院数学系

出　　处：《应用数学和力学》2011年第8期998-1010,共13页Applied Mathematics and Mechanics

摘　　要：分析了化学反应,对流过半无限竖直多孔板的、粘性耗散的、非定常的磁流体流动的影响.利用随时间变化的相似参数,将运动、能量、溶质的控制方程变换为常微分方程,并用有限单元法数值地求解所得到的常微分方程.用图形给出了不同参数对速度、温度和浓度分布的影响,用表格给出了不同物理参数值时,表面摩擦力、Nusselt数和Sherwood数的数值.A chemical reaction effect on an unsteady magnetohydrodynamic flow past a semi-infinite vertical porous plate with viscous dissipation was analyzed.The governing equations of motion,energy and species were transformed into ordinary differential equations using time dependent similarity parameter.The resultant ordinary differential equations were then solved numerically by a finite element method.The effects of the various parameters on the velocity,temperature and concentration profiles were presented graphically and values of skin-friction,Nusselt number and Sherwood number for various values of physical parameters were presented through tables.

关 键 词：磁流体动力学(MHD) 化学反应 多孔介质 粘性耗散 有限元 

分 类 号：O357.3[理学—流体力学] O361.3[理学—力学]