MHD stagnation-point flow past a stretching/shrinking sheet in the presence of heat generation/absorption and chemical reaction effects

被引:17
|
作者
Freidoonimehr, N. [1 ]
Rashidi, M. M. [2 ,3 ]
Jalilpour, B. [4 ]
机构
[1] Islamic Azad Univ, Hamedan Branch, Young Researchers & Elite Club, Hamadan, Iran
[2] Tongji Univ, Shanghai Key Lab Vehicle Aerodynam & Vehicle Ther, 4800 Cao An Rd, Shanghai 201804, Peoples R China
[3] ENN Tongji Clean Energy Inst Adv Studies, Shanghai, Peoples R China
[4] Urmia Univ, Dept Mech Engn, Fac Engn, Orumiyeh 5756115311, Iran
关键词
MHD; Stagnation-point flow; Stretching/shrinking sheet; Chemical reaction; Heat generation/absorption; DTM; Pade approximant; MIXED CONVECTION; MASS-TRANSFER; POROUS-MEDIUM; ENTROPY GENERATION; SURFACE; FLUID;
D O I
10.1007/s40430-015-0456-8
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
In this paper, an analytical method, the combination of differential transform method (DTM) and Pad, approximant, called DTM-Pad,, is employed to solve the fluid flow and heat and mass transfer for an incompressible steady laminar MHD stagnation-point flow over a stretching/shrinking sheet in the presence of the heat generation/absorption and chemical reaction effects. This method is applied to give analytical solutions of nonlinear ordinary differential equations with boundary conditions at infinity. Using similarity variables, the governing nonlinear partial differential equations are converted into a system of coupled nonlinear ordinary differential equations. The current DTM-Pad, solution demonstrates a very good correlation with those of the fourth-order Runge-Kutta integration numerical technique as well as the previously published study results in the special cases. Effects of controlling parameters, including magnetic parameter, Prandtl number, heat source/sink parameter, Schmidt number, reaction rate parameter, suction/injection parameter, and velocity ratio parameter, are investigated on the dimensionless velocity, temperature and concentration profiles.
引用
收藏
页码:1999 / 2008
页数:10
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