Analyzing the Flow and Heat Transfer of a Power-law Fluid over an Unsteadily Stretched Surface using a Modified Homotopy Perturbation Method

被引:1
|
作者
Zheng, Lian-Cun [1 ]
Chen, Chun-Xia [1 ]
Zhang, Xin-Xin [2 ]
Gao, Ying-Tao [3 ]
机构
[1] Univ Sci & Technol Beijing, Dept Math & Mech, Beijing 100083, Peoples R China
[2] Univ Sci & Technol Beijing, Sch Mech Engn, Beijing 100083, Peoples R China
[3] Univ Sci & Technol Beijing, Sch Civil & Environm Engn, Beijing 100083, Peoples R China
关键词
Power-law fluids; stretched surface; heat transfer; variable thermal conductivity; homotopy perturbation method; NON-NEWTONIAN FLUIDS; NONLINEAR PROBLEMS; MIXED CONVECTION; BOUNDARY-LAYER; BIFURCATION; EQUATIONS; WALL;
D O I
暂无
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The flow and heat transfer of a power-law fluid over an unsteadily stretched surface with variable thermal conductivity is studied. The governing equations are reduced to a class of non-linear ordinary differential equations by means of similarity transformations and an approximate analytical solution is obtained by using a modified homotopy perturbation method. The effects of the various parameters (power-law index, unsteadiness parameter, Prandtl number and variable thermal conductivity) on the velocity and temperature fields are graphically illustrated and analyzed.
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页码:843 / 849
页数:7
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