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Effect of Internal Heat Generation and Concentration Change on Free Convection Boundary Layer from Vertical Flat Plate Embedded in Porous Medium
Journal of Engineering Thermophysics ( IF 2.4 ) Pub Date : 2019-07-31 , DOI: 10.1134/s1810232819030111
R. Akter , M. Ferdows , A. Miyara

The effects of exponentially decaying internal heat generation (IHG) and internal mass generation (IMG) over specific components are presented numerically on coupled heat and mass transfer by a free convection boundary layer over a vertical flat plate embedded in a fluid-saturated porous medium. 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: buoyancy force N, exponent of x, λ, and Lewis number Le. Media with and without IHG and IMG are compared in context with the help of graphs and tables. Computations are performed with a system of parameters using built-in codes in Maple. The influences of these parameters on velocity, temperature and concentration profiles, and Sherwood and Nusselt numbers are thoroughly compared and graphically illustrated.

中文翻译:

内部生热和浓度变化对埋在多孔介质中的垂直平板自由对流边界层的影响

通过嵌入在流体饱和多孔介质中的垂直平板上的自由对流边界层,通过特定对数的数值表示了内部热产生(IHG)和内部质量产生(IMG)的指数衰减对耦合传热和传质的影响。相应的相似性解决方案用于将控制性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,并具有以下参数:浮力N,x的指数,λ和Lewis号Le。在有图形和表格的帮助下,对带有或不带有IHG和IMG的媒体进行了比较。使用Maple中的内置代码通过参数系统执行计算。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。
更新日期:2019-07-31
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