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Simulation based on FVM for influence of nanoparticles on flow inside a pipe enhanced with helical tapes
Applied Nanoscience Pub Date : 2020-11-19 , DOI: 10.1007/s13204-020-01583-9
Yu-Ming Chu , Fatemeh Salehi , M. Jafaryar , Quang-Vu Bach

Simulation for impact of new tapes on behavior of nanomaterial within a pipe with considering turbulent regime was scrutinized in current attempt. Entropy analysis was divided into two parts and both fractions were presented in contours. Evaluating the performance of unit should be done in the form of productivity and irreversibility. Presence of new shape of tapes can augment the swirl flow and such greater turbulent intensity can provide better performance. Adding nano-powder can decline the irreversibility and augment the thermal features. In low range of Re, Sgen,th is 200 times larger than the amount of Sgen,f. As pumping power augments, the temperature reduces by about 1.41% when β = 0. Nu and Darcy factor increase by about 1.03% and 8.87% with the rise of β when Re = 5000. Increase of inlet velocity at the highest β leads to 46.5% augmentation in Nu, while f declines by about 11.04%.



中文翻译:

基于FVM的纳米颗粒对螺旋带增强管内流动的影响的模拟

在当前的尝试中,考虑了湍流状态,研究了新胶带对管道内纳米材料行为的影响模拟。熵分析分为两个部分,两个部分都以等高线表示。评估单元性能应以生产率和不可逆性的形式进行。带子的新形状的存在可以增加涡流,并且这种更大的湍流强度可以提供更好的性能。添加纳米粉可降低不可逆性并增强热特性。在Re的低范围内,S gen,thS gen,f的量的200倍。随着泵浦功率的增加,当β降低时,温度降低约1.41% =0。当R e = 5000时,随着β的增加,Nu和Darcy因子分别增加约1.03%和8.87%。最大β处的入口速度增加导致Nu增加46.5%,而f减少约11.04%。

更新日期:2020-11-19
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