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首页> 外文期刊>The Canadian Journal of Chemical Engineering >MHD FLOW AND HEAT TRANSFER OF A MICROPOLAR FLUID OVER A NONLINEAR STRETCHING SURFACE WITH VARIABLE SURFACE HEAT FLUX AND HEAT GENERATION
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MHD FLOW AND HEAT TRANSFER OF A MICROPOLAR FLUID OVER A NONLINEAR STRETCHING SURFACE WITH VARIABLE SURFACE HEAT FLUX AND HEAT GENERATION

机译：具有可变表面热通量和热量产生的非线性拉伸表面上微孔流体的MHD流动和热传递

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摘要

An analysis has been carried out to study magnetohydrodynamic boundary layer flow and heat transfer of an electrically conducting micropolar fluid over a nonlinear stretching surface with variable wall heat flux in the presence of heat generation/absorption and a non-uniform transverse magnetic field. The governing system of partial differential equations is first transformed into a system of ordinary differential equations using similarity transformation. The transformed equations are solved numerically. Results for the dimensionless velocity, micro-rotation, and temperature profiles are displayed graphically delineating the effects of various parameters characterising the flow. The results show that the velocity profile decreases as the magnetic parameter and the velocity exponent increase, while it increases as the material parameter increases. The results show also that the temperature profile increases as the magnetic parameter, the velocity exponent, and the heat generation parameter increase. Furthermore, the temperature profile decreases as the material parameter, the heat absorption parameter, and the Prandtl number increase.
机译：已经进行了分析以研究在存在热量产生/吸收和不均匀横向磁场的情况下，具有可变壁热通量的非线性拉伸表面上的导电微极性流体的磁流体动力学边界层流动和传热。首先使用相似变换将偏微分方程的控制系统转换为常微分方程组。变换后的方程通过数值求解。无因次速度，微旋转和温度曲线的结果以图形方式显示，描绘了表征流量的各种参数的影响。结果表明，速度分布随磁参数和速度指数的增加而减小，而随材料参数的增加而增加。结果还表明，温度分布随磁参数，速度指数和生热参数的增加而增加。此外，温度曲线随着材料参数，吸热参数和普朗特数的增加而降低。

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