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Effect of partial slip on boundary layer mixed convective flow adjacent to a vertical permeable stretching sheet in porous medium

机译:局部滑动对多孔介质中垂直渗透片材边界层混合对流的影响

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摘要

A steady boundary layer mixed convective flow of Newtonian fluids in a vertical permeable stretching sheet in porous medium is analyzed, with partial slip condition at the boundary. Applying similarity transformations, the self-similar equations are obtained from the governing equations and are solved numerically using the shooting method. From the analysis it reveals that the enhancement of the buoyancy or mixed convection parameter increases the velocity and decreases the temperature. Due to the increase of slip parameter, the momentum boundary layer thickness increases. The Prandtl number has also significant effects on velocity field and for the increase of the Prandtl number, the velocity as well as the velocity boundary layer thickness decrease. Furthermore, the wall skin friction and the rate of heat transfer from the sheet decrease with the increase in slip parameter.
机译:分析了多孔介质中垂直渗透性拉伸片中牛顿流体的稳定边界层混合对流,边界处存在部分滑动条件。应用相似变换,从控制方程中获得自相似方程,并使用射击方法对其进行数值求解。从分析中可以看出,浮力或混合对流参数的增加会增加速度并降低温度。由于滑动参数的增加,动量边界层的厚度增加。普朗特数对速度场也具有显着影响,并且对于普朗特数的增加,速度以及速度边界层厚度减小。此外,随着滑动参数的增加,壁的皮肤摩擦和来自片材的热传递速率减小。

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