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首页> 外文期刊>European Journal of Mechanics, B. Fluids >Heat transfer in non-axisymmetric Homann stagnation-point flows towards a stretching sheet
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Heat transfer in non-axisymmetric Homann stagnation-point flows towards a stretching sheet

机译：非轴对称Homann停滞点的热传递朝向拉伸纸张流动

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摘要

We have studied heat transfer in non-axisymmetric Homann stagnation-point flows towards a stretching sheet. In a recent paper, Weidman (2012) has modified Homann stagnation point flow and made it non-axisymmetric over a rigid plate. Now, if the plate is not rigid but linearly stretched with velocities in the x- and y-directions, and heat is transferred from the plate to the ambient fluid, then there is a new family of asymmetric viscous stagnation-point flows depending on the ratios of shear to strain rate at the plate gamma(= b/c), and the strain-rate of the ambient fluid to strain-rate at the plate lambda(= a/c) in the range -infinity < gamma, lambda < infinity. Here, a, b are the strain rate, shear rate of the stagnation-point flow, and c is the strain-rate at the plate. We have also studied the heat transfer in the flow. The governing momentum equations are solved numerically using a fourth order Runge-Kutta method with a shooting technique. The effect of the various parameters on the wall shear-stress parameters, dimensionless velocities, displacement thicknesses and temperature distributions are analysed. Numerical results of wall shear-stress and displacement thickness are compared with their large value behaviours and those behaviours give a good agreement with the corresponding numerical solutions. (C) 2017 Elsevier Masson SAS. All rights reserved.
机译：我们研究了在非轴对称的Homann Stagnation点流动朝向拉伸板的传热。在最近的一篇论文中，Weidman（2012）已经改进了Homann停滞点流，并在刚性板上非轴对称。现在，如果板不刚性但是用X和Y方向的速度线性地拉伸，并且热量从板转移到环境液中，然后有一个新的不对称粘性停滞点流量，这取决于在板γ（= B / C）的剪切与应变率的比率，以及环境流体的应变速率在范围内的λ（= a / c）中的应变速率 - λ

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