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研究伴有化学反应的流经多孔楔形体的,传热传质磁流体的自由、受迫和混合对流.使用结合打靶法的Runge-Kutta-Gill方法,和直到3阶截断误差的局部非相似法,将偏微分的控制方程简化为9个常微分方程.通过Falkner-Skan变换,将边界层控制方程表示为无量纲形式.由于楔形体壁面的吸入/喷出,以及可变的壁面温度和浮力的影响,使得流场呈局部非相似性.就一些特定的无量纲参变数,给出具有3阶截断误差的数值计算.图形显示可变壁面温度和浓度条件下,伴有化学反应时磁场强度对无量纲速度、温度和浓度分布的影响.
The free, forced and mixed convection of heat and mass transfer magnetic fluids flowing through porous wedges with chemical reactions was studied using the Runge-Kutta-Gill method combined with a shooting method, which is similar to the local non-similarity until the third-order truncation error Method, the partial differential governing equations are reduced to nine ordinary differential equations.The governing equations of the boundary layer are expressed as dimensionless forms by Falkner-Skan transformation.Because the inlet / discharge of wedge wall and the variable wall temperature sum Buoyancy, the flow field is locally non-similar, and numerical calculations with third-order truncation errors are given for some particular dimensionless variables.The graphs show the effect of magnetic field with chemical reaction under variable wall temperature and concentration conditions Effect of intensity on dimensionless velocity, temperature and concentration distribution.