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首页> 外文期刊>International Journal of Heat and Mass Transfer >MHD variable viscosity reacting flow over a convectively heated plate in a porous medium with thermophoresis and radiative heat transfer
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MHD variable viscosity reacting flow over a convectively heated plate in a porous medium with thermophoresis and radiative heat transfer

机译：MHD可变粘度反应流在具有热泳和辐射传热的多孔介质中在对流加热板上的流动

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摘要

The effects of temperature-dependent viscosity on the heat and mass transfer in nonlinear MHD boundary layer flow past a vertical porous plate are studied in the presence of a magnetic field, thermal radiation, thermophoresis, and an nth-order homogeneous chemical reaction. The fluid properties are assumed to be constant except for the density variation with the temperature. The governing equations are converted in to a system of nonlinear ordinary differential equations which is solved numerically using the Nachtsheim and Swigert shooting iteration technique together with a sixth-order R-K integration algorithm. The dimensionless velocity, temperature and concentration profiles are shown graphically. The effects of dimensionless numbers and pertinent parameters on the skin friction, Nusselt number and Sherwood number are examined in the presence of a magnetic field and thermal radiation. It is found that skin friction is lower and Nusselt number is higher when the viscosity is temperature dependent.
机译：在磁场，热辐射，热泳和n阶均相化学反应的存在下，研究了温度依赖性粘度对非线性MHD边界层流过垂直多孔板的传热和传质的影响。除了密度随温度变化以外，其他流体特性均保持恒定。控制方程被转换成非线性常微分方程系统，该系统使用Nachtsheim和Swigert射击迭代技术与六阶R-K积分算法进行数值求解。无量纲的速度，温度和浓度分布图以图形方式显示。在存在磁场和热辐射的情况下，检查了无量纲数和相关参数对皮肤摩擦，努塞尔数和舍伍德数的影响。已经发现，当粘度与温度有关时，皮肤摩擦较低，而努塞尔数较高。

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