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Thermophoretic particle deposition in the flow of dual stratified Casson fluid with magnetic dipole and generalized Fourier's and Fick's laws
Case Studies in Thermal Engineering ( IF 6.8 ) Pub Date : 2021-06-24 , DOI: 10.1016/j.csite.2021.101186
Shu-Bo Chen , Nazia Shahmir , Muhammad Ramzan , Yu-Liang Sun , Ayman A. Aly , M.Y. Malik

Thermophoretic particle deposition is one of the most rudimentary processes for transferring small particles over a temperature gradient, and it is vital in aero-solution and electronic engineering. In the proposed model, it is intended to explore heat and mass transfer on double-diffusive electrically non-conducting Casson fluid in the two-dimensional flow past a stretching surface with thermophoretic particle deposition. An external magnetic field is subjected to a magnetic dipole. The analysis of Casson fluid along magnetic dipole represents the ferromagnetic fluid. As a consequence of the presence of ferrite particles, the fluid has magnetic properties and is thus a non-Newtonian Casson ferrofluid. Moreover, to enclose heat and mass transfer characteristics, thermal and solutal stratifications are also employed. An eminent bvp4c technique in MATLAB is incorporated to compute these ODEs numerically. Graphical representations of important parameters and their physical behavior are extensively analyzed. The Nusselt number, thermophoretic particle deposition velocity, and drag force coefficient are also addressed graphically. The findings demonstrate that as the values of thermophoretic coefficient and thermophoretic parameter increase, the mass transfer rate diminishes. Further, with the escalating values of the ferromagnetic interaction parameter, the velocity field is reduced but the opposite trend is seen for the thermal field.



中文翻译:

具有磁偶极子和广义傅立叶定律和菲克定律的双分层卡松流体流动中的热泳粒子沉积

热泳粒子沉积是在温度梯度上转移小粒子的最基本过程之一,它在气溶胶和电子工程中至关重要。在所提出的模型中,它旨在探索在二维流中通过热泳粒子沉积的拉伸表面的双扩散非导电 Casson 流体的传热和传质。外部磁场受到磁偶极子的影响。沿磁偶极子的卡松流体的分析代表了铁磁流体。由于铁氧体颗粒的存在,该流体具有磁性,因此是非牛顿卡森铁磁流体。此外,为了包含传热和传质特性,还采用了热分层和溶质分层。结合了 MATLAB 中一项著名的 bvp4c 技术以数值计算这些 ODE。对重要参数及其物理行为的图形表示进行了广泛分析。努塞尔数、热泳粒子沉积速度和阻力系数也以图形方式处理。研究结果表明,随着热泳系数和热泳参数值的增加,传质速率减小。此外,随着铁磁相互作用参数值的升高,速度场减小,但热场的趋势相反。和阻力系数也以图形方式解决。研究结果表明,随着热泳系数和热泳参数值的增加,传质速率减小。此外,随着铁磁相互作用参数值的升高,速度场减小,但热场的趋势相反。和阻力系数也以图形方式解决。研究结果表明,随着热泳系数和热泳参数值的增加,传质速率减小。此外,随着铁磁相互作用参数值的升高,速度场减小,但热场的趋势相反。

更新日期:2021-06-24
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