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Comparative numerical analysis of Maxwell's time-dependent thermo-diffusive flow through a stretching cylinder
Case Studies in Thermal Engineering ( IF 6.8 ) Pub Date : 2021-07-31 , DOI: 10.1016/j.csite.2021.101301
Muhammad Bilal , Anwar Saeed , Mahmoud Mohamed Selim , Taza Gul , Ishtiaq Ali , Poom Kumam

The study of fluid flow around a stretching cylinder has great importance, due to its broad range of applications in engineering and industries. In this article, unsteady incompressible Maxwell nanofluid flow around a stretching cylinder escorted by unfluctuating suction/injection impact has been scrutinized. The Maxwell nanofluid nature is described through Buongiorno's model. The dimensionless system of ODEs is diminished from the system of modeled equations, through a proper similarity transformation. The obtained system of ordinary differential equations is further numerically computed with PCM (Parametric continuation method). For the validity of the results, the outcomes are compared with Matlab package boundary value solver (bvp4c). The physical entities influence on velocity, energy, concentration, and magnetic strength profiles are sketched and discussed. It has been perceived that the momentum of mass transmission is significantly increases with the effects of thermophoresis parameter, while the velocities in angular and radial directions are reducing with enlarging of viscosity parameter. The influences of thermal radiation Rd and Brownian motion are particularly more valuable to enhance the temperature of the fluid. Furthermore, by applying the magnetic field a resistive force is formed, which reduced the velocities and boosted the temperature of the fluid.



中文翻译:

通过拉伸圆柱体的麦克斯韦时变热扩散流的比较数值分析

围绕拉伸圆柱体的流体流动的研究非常重要,因为它在工程和工业中的应用范围很广。在这篇文章中,在波动的吸入/注射冲击的陪同下,围绕拉伸圆柱体的不稳定不可压缩麦克斯韦纳米流体流动已被仔细研究。Maxwell 纳米流体的性质是通过 Buongiorno 的模型来描述的。通过适当的相似变换,ODE 的无量纲系统从建模方程系统中减少。得到的常微分方程组进一步用PCM(参数延拓法)进行数值计算。为了结果的有效性,将结果与 Matlab 包边界值求解器 (bvp4c) 进行了比较。物理实体影响速度、能量、浓度、和磁场强度分布被勾画和讨论。可以看出,随着热泳参数的影响,传质动量显着增加,而角方向和径向方向的速度随着粘度参数的增大而减小。热辐射的影响R d和布朗运动对于提高流体的温度特别有价值。此外,通过施加磁场形成阻力,这降低了速度并提高了流体的温度。

更新日期:2021-08-02
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