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首页> 外文期刊>International Journal of Engineering Research and Applications >Effects of Thermal Radiation and Chemical Reaction on MHD Free Convection Flow past a Flat Plate with Heat Source and Convective Surface Boundary Condition
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Effects of Thermal Radiation and Chemical Reaction on MHD Free Convection Flow past a Flat Plate with Heat Source and Convective Surface Boundary Condition

机译：热辐射和化学反应对MHD自由对流通过热源和对流表面边界条件的平板的影响

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摘要

This paper analyzes the radiation and chemical reaction effects on MHD steady two-dimensional laminar viscous incompressible radiating boundary layer flow over a flat plate in the presence of internal heat generation and convective boundary condition. It is assumed that lower surface of the plate is in contact with a hot fluid while a stream of cold fluid flows steadily over the upper surface with a heat source that decays exponentially. The Rosseland approximation is used to describe radiative heat transfer as we consider optically thick fluids. The governing boundary layer equations are transformed into a system of ordinary differential equations using similarity transformations, which are then solved numerically by employing fourth order Runge-Kutta method along with shooting technique. The effects of various material parameters on the velocity, temperature and concentration as well as the skin friction coefficient, the Nusselt number, the Sherwood number and the plate surface temperature are illustrated and interpreted in physical terms. A comparison of present results with previously published results shows an excellent agreement.
机译：本文分析了在内部热量产生和对流边界条件下，MHD稳态二维层状粘性不可压缩辐射边界层在平板上流动的辐射和化学反应效应。假定板的下表面与热流体接触，而冷流体的流通过热源呈指数衰减的方式稳定地流过上表面。当我们考虑光学上较稠的流体时，Rosseland逼近用于描述辐射传热。使用相似变换将控制边界层方程转换为常微分方程组，然后使用四阶Runge-Kutta方法和射击技术对其进行数值求解。各种材料参数对速度，温度和浓度以及皮肤摩擦系数，Nusselt数，Sherwood数和印版表面温度的影响都以物理方式进行了说明和解释。将当前结果与以前发表的结果进行比较，可以得出很好的一致性。

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