当前位置: X-MOL 学术J. Non-Newtonian Fluid Mech. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Flow of viscoplastic fluids containing hybrid nanoparticles: Extended Buongiorno’s model
Journal of Non-Newtonian Fluid Mechanics ( IF 3.1 ) Pub Date : 2020-05-13 , DOI: 10.1016/j.jnnfm.2020.104308
Sara Lahlou , Nabila Labsi , Youb Khaled Benkahla , Ahlem Boudiaf , Seif-Eddine Ouyahia

This paper investigates numerically the flow of a temperature-dependent viscoplastic fluid containing hybrid Ag and MgO nanoparticles through a ventilated heated cavity. A new approach for modeling the hybrid nanoparticle migration is proposed. The proposed model, which is based on Buongiorno’s non-homogeneous model, takes into account the nanoparticles mass flux due to both Brownian and thermophoretic diffusion, for each solid constituent. This is done by adding a mass conservation equation for each nanoparticle type, considering no mass flux at the walls. The results reveal that the nanoparticle distribution is the same for both constituents due to the dominance of inertia and buoyancy forces over slip mechanisms.



中文翻译:

包含杂化纳米颗粒的粘塑性流体的流动:扩展的Buongiorno模型

本文从数值上研究了由温度依赖性的包含混合Ag和MgO纳米颗粒的粘塑性流体通过通风加热腔的流动。提出了一种模拟杂化纳米粒子迁移的新方法。所提出的模型基于Buongiorno的非均质模型,对每种固体成分均考虑了由于布朗扩散和热泳扩散而产生的纳米粒子质量通量。这是通过为每种纳米颗粒添加质量守恒方程来完成的,考虑到壁上没有质量通量。结果表明,由于惯性和浮力对滑动机制的支配性,两种成分的纳米颗粒分布相同。

更新日期:2020-05-13
down
wechat
bug