Mixed convection boundary layer flow over a permeable vertical surface with prescribed wall heat flux
Mixed convection boundary layer flow over a permeable vertical surface with prescribed wall heat flux
复制标题
具有指定壁热通量的可渗透垂直表面上的混合对流边界层流
DOI：
10.1007/s00033-006-6082-7
复制
发表时间：
2008
期刊：
影响因子：
--
通讯作者：
I. Pop
中科院分区：
文献类型：
--
作者：
Anuar Ishak;J. Merkin;R. Nazar;I. Pop
在给定热流密度的情况下，考虑了吸入/注入对垂直壁层流混合对流边界层流动的影响。导出了使方程简化为相似形式的条件，并得到了吸力/喷射力和浮力参数取值范围内方程的数值解。文中详细讨论了驻点流和均匀壁面热流的两种具体情况。给出了壁面摩擦和壁温的计算结果，并给出了速度分布和温度分布的选择。对于辅助流动，发现存在双重解决方案，这些解决方案是对先前报道的相反流动的补充。文中还给出了参数极限值的解。
The effects of suction/injection on the laminar mixed convection boundary-layer flow on a vertical wall with a prescribed heat flux are considered. The conditions which allow the equations to be reduced to similarity form are derived and numerical solutions of the resulting equations are obtained for a range of values of the suction/injection and buoyancy parameters. Two specific cases, corresponding to a stagnation point flow and uniform wall heat flux, are treated in detail. Results are presented in terms of the skin friction and wall temperature with a selection of velocity and temperature profiles also being given. Dual solutions are found to exist for assisting flow, these are an addition to what has been reported previously for opposing flows. Solutions for some limiting values of the parameters are also derived.