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3-D simulations for maximum values of fluid distributions over separated contours on MHD peristaltic flow of pseudoplastic nanofluid in variable electric conductivity: solar applications
Archive of Applied Mechanics ( IF 2.8 ) Pub Date : 2024-01-10 , DOI: 10.1007/s00419-023-02530-0
Nourreddine Sfina , M. G. Ibrahim

In many industrial usages, nanofluid plays a paramount role in heat transfer rates. So technical studies for the peristaltic flow of MHD Pseudoplastic nanofluid are proposed. The channel walls are characterized by lower uniformity on the lower section and non-uniform asymmetry on the upper section. The law by Wiedemann Franz in some metal materials show that the electrical conductivity has indistinguishable performance of thermal conductivity. In the sense that the thermal energy of the electrons also moves freely and not the electric current. Accordingly, electrical conductivity the fluid electrical conductivity supposed to be varied with the fluid temperature and concertation. Porous medium, and chemical effects are considered. The fluid model re-arranged using dropping bars, \(\delta \ll 1,\) and long wavelengths, then the distributions of fluid are obtained in 3-D figures. Special case for separated contours line is studied, and the maximum values of fluid distributions are visualized. The results are verified in comparisons of trustful published contents of Hasona et al. (J Ther Sci Eng Appl 12(2):021018, 2020), and assured to be in a good manner. The bolus of fluid diminishing at high values of temperature-dependent electrical conductivity. Maximum values for the nanoparticle velocity can improve the solar absorption in solar energy cell.



中文翻译:

可变电导率下假塑性纳米流体 MHD 蠕动流上分离轮廓上流体分布最大值的 3-D 模拟:太阳能应用

在许多工业用途中,纳米流体在传热速率方面起着至关重要的作用。因此提出了对MHD拟塑性纳米流体蠕动流动的技术研究。通道壁的特点是下部均匀性较低,上部不均匀不对称。Wiedemann Franz在某些金属材料中的定律表明,导电性具有与导热性不可区分的性能。从某种意义上说,电子的热能也可以自由移动,而不是电流。因此,电导率和流体电导率应该随着流体温度和协调性而变化。考虑多孔介质和化学效应。使用下降条、 \(\delta \ll 1,\)和长波长重新排列流体模型,然后在 3D 图中获得流体分布。研究了分离轮廓线的特殊情况,并对流体分布的最大值进行了可视化。结果通过与 Hasona 等人发表的可信内容的比较得到验证。(J Ther Sci Eng Appl 12(2):021018, 2020),并保证以良好的方式进行。在与温度相关的电导率较高的情况下,液体团会减少。纳米粒子速度的最大值可以提高太阳能电池中的太阳能吸收。

更新日期:2024-01-11
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