生物对流效应对MHD纳米流体通过多孔扩展楔体的数值研究

IF 5.4 2区 工程技术 Q1 ENGINEERING, AEROSPACE Propulsion and Power Research Pub Date : 2023-11-30 DOI:10.1016/j.jppr.2023.11.002
Bagh Ali, Muhammad Ilyas, Imran Siddique, Huizhu Yang, Muhammad Kamran Ashraf, Sohaib Abdal
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引用次数: 0

摘要

我们探讨了生物对流和热辐射对纳米流体在磁力作用下通过拉伸可渗透楔块的影响。利用适当的相似变换变量求解常微分方程。为了解决这些方程的非线性问题,在MATLAB平台上利用基于射击技术和靶场库塔法的数值计算程序。通过计算和吞噬来评估控制限制对温度、速度、纳米流体浓度和微生物密度的影响。热泳动和布朗运动的增强提高了流体的温度。当Lewis数、非定常和布朗运动参数较高时,剖面体积分数呈下降趋势,而当Williamson和热泳参数较高时,剖面体积分数呈相反趋势。运动楔体的表面摩擦值随着楔角参数的增大而增大。活动生物剖面随Peclet数、生物对流Lewis数、温差和非定常参数的增大而减小,而随楔角参数的增大而减小。
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Numerical study for bio-convection effects on MHD nano-fluid flow past a porous and extending wedge

We explored the insinuations of bio-convection and thermal radiation on nanofluid transportation across stretching permeable wedge with magnetic force. Appropriate similarity transformation variables are utilized to achieve ordinary differential equations. In order to tackle the non-linearity of these equations, numerical procedure based on shooting technique and Range Kutta method are harnessed on MATLAB platform. Computational and devour is carried out to evaluate the influence of controlling limitations on temperature, velocity, concentration of nanofluids and micro-organisms density. The growing strength of thermophoresis and Brownian motion enhance the fluid temperature. The profile volume fraction show decline against higher values of parameters which are Lewis number, unsteadiness and Brownian motion but opposite trend noted against higher value of Williamson and thermophoresis parameters. The skin friction values rise with the growing values of parameter of wedge angle for the moving wedge. The motile organism profile exhibits decrease against growing strength of Peclet number, bioconvection Lewis number, temperature difference and unsteady parameters while opposite behavior has been noted against wedge angle parameter.

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来源期刊
CiteScore
7.50
自引率
5.70%
发文量
30
期刊介绍: Propulsion and Power Research is a peer reviewed scientific journal in English established in 2012. The Journals publishes high quality original research articles and general reviews in fundamental research aspects of aeronautics/astronautics propulsion and power engineering, including, but not limited to, system, fluid mechanics, heat transfer, combustion, vibration and acoustics, solid mechanics and dynamics, control and so on. The journal serves as a platform for academic exchange by experts, scholars and researchers in these fields.
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