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Thermal radiation and Hall effects in mixed convective peristaltic transport of nanofluid with entropy generation
Applied Nanoscience Pub Date : 2020-06-10 , DOI: 10.1007/s13204-020-01446-3
Y. Akbar , F. M. Abbasi , S. A. Shehzad

The enhancement of energy by introducing nanoparticles is a hot topic in the present century, due to industrial and technological applications. Therefore, current article investigates the peristaltic flow of \(\mathrm{Ag}{-}\mathrm{H}_2\mathrm{O}\) nanofluid with entropy generation through a uniform channel. Hall and Radiation effects are incorporated. Two-phase formulation for nanofluid is employed. Long-wavelength approximation is used in the mathematical modelling. Built-in numerical solver NDSolve is utilized. Numerical results of the coupled equations are sketched for several quantities of interest. Outcomes of the study reveals that entropy significantly reduces for large values of Hall parameter, whereas opposite behaviour is noted for velocity. Increase in the values of radiation parameter reduces the velocity, temperature, and entropy generation. Increase in Bejan number is observed for enhancement in Brinkman number. Rate of heat transfer at walls increases when heat source parameter is increased. Additionally, comparison of different nanoparticles is also furnished through tables.



中文翻译:

熵产生的纳米流体混合对流蠕动传输中的热辐射和霍尔效应

由于工业和技术应用,通过引入纳米颗粒来增强能量是本世纪的热门话题。因此,当前文章研究了\(\ mathrm {Ag} {-} \ mathrm {H} _2 \ mathrm {O} \)的蠕动流通过均匀通道产生熵的纳米流体。合并了霍尔效应和辐射效应。采用了纳米流体的两相配方。在数学建模中使用了长波长近似。利用内置的数值求解器NDSolve。针对几个感兴趣的量,绘制了耦合方程的数值结果。研究结果表明,霍尔参数较大时,熵显着降低,而速度则表现出相反的行为。辐射参数值的增加会降低速度,温度和熵的生成。观察到Bejan数增加可提高Brinkman数。当热源参数增加时,壁处的传热速率增加。另外,还通过表格提供了不同纳米颗粒的比较。

更新日期:2020-06-10
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