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Numerical study at moderate Reynolds number of peristaltic flow of micropolar fluid through a porous-saturated channel in magnetic field

机译:通过磁场多孔饱和通道中度雷诺蠕动蠕动蠕动蠕动流动的数值研究

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摘要

This paper analyzes the MHD flow of micropolar fluid induced by peristaltic waves passing through the porous saturated channel at large Reynolds number. The flow model is formulated in the absence of assumptions of lubrication theory which yields the governing equations into a non-linear set of coupled partial differential equations which allows studying the peristaltic mechanism at non-zero Reynolds and wave numbers. The influence of other involved parameters on velocity, stream function and microrotation are discussed through graphs plotted by using Galerkin’s finite element method. Besides that, the phenomena of pumping and trapping are also analyzed in the later part of the paper. To ensure the accuracy of the developed code, obtained results are compared with the results available in the literature and found in excellent agreement. It is found that the peristalsis mixing can be enhanced by increasing Hartmann number while it reduces by increasing permeability of the porous medium.
机译:本文分析了通过大雷诺数通过多孔饱和通道的蠕动波引起的微柱流体的MHD流动。流动模型在没有润滑理论的假设的情况下制定,这将控制方程产生给非线性组耦合的部分微分方程,其允许在非零雷诺和波数处研究蠕动机制。通过使用Galerkin的有限元方法绘制的图表讨论了其他涉及参数对速度,流功能和微液的影响。除此之外,还在纸张的后部分析了泵送和捕获现象。为确保所发达代码的准确性,将获得的结果与文献中可用的结果进行比较,并以优秀的一致存在。发现通过增加多孔介质的渗透性降低,可以通过增加Hartmann数来提高蠕动混合。

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