Abstract

The paper addresses a mixed convection boundary layer flowing on a horizontal surface embedded in porous medium with exponentially decaying internal heat generation (IHG) and internal mass generation (IMG) from a specific component with chemical reaction in order to investigate the heat and mass transfer characteristics. Corresponding similarity solutions are used to reduce the governing partial nonlinear differential equations to three ordinary differential equations for the dimensionless stream function, temperature, and concentration with the following parameters: mixed convection parameter \(\varepsilon\), chemical reaction parameter \(\gamma_1\), and Lewis number \(Le\). The influences of these parameters on the velocity, temperature and concentration profiles, and Sherwood and Nusselt numbers are thoroughly compared and graphically illustrated. Computations are performed with a system of parameters using built-in codes in Maple. Media with and without IHG and IMG are compared with available open literature using graphs and tables and are found to be in excellent agreement.

中文翻译：

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内生热和浓度变化的多孔介质中嵌入水平面的混合对流边界层

摘要

为了研究传热和传质特性，本文针对混合介质对流边界层，该对流边界层在嵌入多孔介质中的水平面上流动，并通过化学反应使特定组分的内部生热（IHG）和内部质量产生（IMG）呈指数衰减。 。相应的相似性解决方案用于将控制的部分非线性微分方程简化为三个无因次流函数，温度和浓度的常微分方程，它们具有以下参数：混合对流参数 \（\ varepsilon \），化学反应参数\（\ gamma_1 \）和路易斯数\（Le \）。这些参数对速度，温度和浓度分布以及Sherwood和Nusselt数的影响已被彻底比较并以图形方式说明。使用Maple中的内置代码通过参数系统执行计算。使用图表将带有或不带有IHG和IMG的媒体与可用的公开文献进行比较，并且发现它们之间具有极好的一致性。