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Entropy optimization for peristalsis of Rabinowitsch nanomaterial
Applied Nanoscience ( IF 3.869 ) Pub Date : 2020-08-14 , DOI: 10.1007/s13204-020-01535-3
Tasawar Hayat , Sadaf Nawaz , Ahmed Alsaedi , Habib M. Fardoun

This work models new formulation for peristaltic activity of Rabinowitsch material in a compliant walls channel. Energy equation is accounted in the presence of viscous dissipation and heat source/sink. Chemical reaction is included in concentration expression. Nanomaterial characteristics are due to Brownian motion and thermophoresis. Slip condition is utilized for velocity, temperature and concentration. Exact solution is obtained for velocity. Further NDSolve is utilized for the graphical analysis of temperature, concentration, entropy and heat transfer coefficient at the wall. Results are also analyzed for viscous, shear thickening and shear thinning fluids. This study reveals the results that the shear thinning fluids move with greater velocity than the viscous and shear thickening fluids. Similarly, temperature and entropy generation also has higher values for shear thinning case when compared with others. Further heat source parameter enhances the temperature, whereas sink parameter leads to decay. Slip parameter for velocity and temperature caused an increase in the respective velocity and temperature. Moreover, chemical reaction parameter leads to enhancement in temperature and entropy generation in case of viscous, shear thickening and shear thinning fluids. However, shear thinning fluids are found prominent.



中文翻译:

Rabinowitsch纳米材料蠕变的熵优化

这项工作为顺应性壁槽中Rabinowitsch材料蠕动的新配方建模。在存在粘性耗散和热源/散热片的情况下考虑了能量方程。浓度表达中包括化学反应。纳米材料的特性归因于布朗运动和热泳。滑移条件用于速度,温度和浓度。获得速度的精确解。进一步的NDSolve用于对壁的温度,浓度,熵和传热系数进行图形分析。还分析了粘性,剪切增稠和剪切稀化流体的结果。这项研究揭示了以下结果:剪切稀化流体以比粘性和剪切增稠流体更大的速度运动。同样,与其他相比,温度和熵的产生对于剪切稀化情况也具有更高的值。进一步的热源参数会提高温度,而下沉参数会导致衰减。速度和温度的转差参数导致相应的速度和温度增加。此外,在粘性,剪切增稠和剪切稀化流体的情况下,化学反应参数会导致温度和熵的产生增加。然而,发现剪切稀化流体是突出的。在粘性,剪切增稠和剪切稀化流体的情况下,化学反应参数会导致温度升高和熵产生。然而,发现剪切稀化流体是突出的。在粘性,剪切增稠和剪切稀化流体的情况下,化学反应参数会导致温度升高和熵产生。然而,发现剪切稀化流体是突出的。

更新日期:2020-08-15
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