International Journal of Numerical Methods for Heat & Fluid Flow ( IF 4.0 ) Pub Date : 2021-06-08 , DOI: 10.1108/hff-01-2021-0066 Abdelraheem M. Aly , Zehba Raizah
Purpose
The purpose of this study is to apply an incompressible smoothed particle hydrodynamics (ISPH) method to simulate the Magnetohydrodynamic (MHD) free convection flow of a nanofluid in a porous cavity containing rotating hexagonal and two circular cylinders under the impacts of Soret and Dufour numbers.
Design/methodology/approach
The inner shapes are rotating around a cavity center by a uniform circular motion at angular rate
Findings
The results indicated that the uniform motions of inner shapes are changing the characteristics of the fluid flow, temperature and concentration inside a cavity. An augmentation on a Hartman parameter slows down the flow speed and an inclination angle of a magnetic field raises the flow speed. A rise in the Soret number accompanied by a reduction in the Dufour number lead to a growth in the concentration distribution in a cavity.
Originality/value
ISPH method is used to simulate the double-diffusive convection of novel rotating shapes in a porous cavity. The inner novel shapes are rotating hexagonal and two circular cylinders.
中文翻译:
纳米流体在包含旋转六边形和圆柱体的多孔腔中的双扩散对流:ISPH 模拟
目的
本研究的目的是应用不可压缩的光滑粒子流体动力学 (ISPH) 方法来模拟纳米流体在包含旋转六边形和两个圆柱体的多孔腔中在 Soret 和 Dufour 数的影响下的磁流体力学 (MHD) 自由对流流动。
设计/方法/方法
内部形状围绕型腔中心以角速率匀速圆周运动旋转
发现
结果表明,内部形状的匀速运动正在改变腔内流体流动、温度和浓度的特性。Hartman 参数的增加会减慢流速,而磁场的倾角会提高流速。Soret 数的增加伴随 Dufour 数的减少导致腔中浓度分布的增加。
原创性/价值
ISPH 方法用于模拟多孔腔中新型旋转形状的双扩散对流。内部新颖的形状是旋转六边形和两个圆柱体。