Momentum and heat transfer in power-law fluid flow over two-dimensional or axisymmetrical bodies
Momentum and heat transfer in power-law fluid flow over two-dimensional or axisymmetrical bodies
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DOI：
10.1016/s0017-9310(83)80029-5
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发表时间：
1983-02
影响因子：
5.2
通讯作者：
H. W. Kim;D. Jeng;K. Dewitt
中科院分区：
文献类型：
--
作者：
H. W. Kim;D. Jeng;K. Dewitt
从理论上研究了幂律流体流过任意形状的二维或轴对称物体时的动量和热量传递。动量分析采用Merk型级数展开法。对于对流换热，本文采用广义坐标变换法分析了表面温度分布呈阶跃变化的物体层流边界层温度场。在动量和热传递中，控制方程的解作为与问题的几何形状无关的通用函数获得。文中求得了通用函数的数值解和封闭解，并应用于楔流和圆柱绕流的分析。
Momentum and heat transfer in power-law fluid flow over arbitrarily shaped two-dimensional or axisymmetrical bodies are examined theoretically. The Merk type of series expansion technique is used for the momentum analysis. For convective heat transfer, a generalized coordinate transformation is employed to analyze the temperature field in a laminar boundary layer for the body with a step change in the surface temperature distribution. In both momentum and heat transfer, the solution to the governing equations are obtained as universal functions which are independent of the geometry of the problem. The numerical and closed-form solution to the universal functions are found and then applied to analyze wedge flow and flow over a circular cylinder.