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首页> 外文期刊>Heat transfer >Analysis of nonlinear thermal radiation and higher-order chemical reactions on the non-orthogonal stagnation point flow over a lubricated surface
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Analysis of nonlinear thermal radiation and higher-order chemical reactions on the non-orthogonal stagnation point flow over a lubricated surface

机译：润滑表面上非正交停滞点流动的非线性热辐射和高阶化学反应分析

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摘要

A numerical study is performed to discuss the heat and mass transfer on oblique stagnation point flow over a lubricated surface with nonlinear thermal radiation and higher-order chemical reactions. The problem is formulated using basic conservation laws of mass, momentum, energy, and mass concentration in terms of partial differential equations along with nonlinear boundary conditions. These governing equations are transformed into ordinary differential equations by means of similarity transformations. The system of resulting ordinary differential equations are solved numerically by an implicit finite difference scheme known as the Keller-box method. The quantities elaborated in the problem, such as velocity, temperature, skin friction, and local Nusselt and Sherwood numbers are analyzed for several values of involved parameters. The obtained results are presented through various graphs and tabular data and showed a good agreement with the existing results in the literature, which are the subcases of the present work. The heat transfer rate enhances with nonlinear thermal radiation and mass transfer rate decreases with increasing the order of chemical reaction.
机译：进行了数值研究，以讨论在具有非线性热辐射和高阶化学反应的润滑表面上斜停滞点流上的传热和传质。该问题是使用质量，动量，能量和质量浓度的基本守恒定律根据偏微分方程以及非线性边界条件来表述的。这些控制方程通过相似变换被转换为常微分方程。通过称为Keller-box方法的隐式有限差分方案，可以对所得的常微分方程组进行数值求解。针对涉及参数的几个值，分析了问题中阐述的量，例如速度，温度，皮肤摩擦以及局部Nusselt和Sherwood数。所得结果通过各种图形和表格数据呈现，并且与文献中的现有结果（这是本工作的子案例）有很好的一致性。传热速率随非线性热辐射而增加，传质速率随化学反应顺序的增加而降低。

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