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Effect of concentration dependence of viscosity on squeeze film lubrication
Zeitschrift für Naturforschung A ( IF 1.8 ) Pub Date : 2020-05-26 , DOI: 10.1515/zna-2019-0370
Poosan Muthu 1 , Vanacharla Pujitha 1
Affiliation  

Abstract The influence of concentration of solute particles on squeeze film lubrication between two poroelastic surfaces has been analyzed using a mathematical model. Newtonian viscous fluid is considered as a lubricant whose viscosity varies linearly with concentration of suspended solute particles. Convection-diffusion model is proposed to study the concentration of solute particles and is solved using finite difference method of Crank–Nicolson scheme. An iterative procedure is used to get the solution for concentration, pressure and velocity components in film region. It has been observed that load carrying capacity decreases as the concentration of solute particles in the fluid film decreases. Further, the concentration of suspended solute particles decreases as the permeability of the poroelastic plate increases and these results may be useful in understanding the mechanism of human joint.

中文翻译:

粘度的浓度依赖性对挤压油膜润滑的影响

摘要 利用数学模型分析了溶质颗粒浓度对两个多孔弹性表面之间的挤压膜润滑的影响。牛顿粘性流体被认为是一种润滑剂,其粘度随悬浮溶质颗粒的浓度呈线性变化。提出了对流扩散模型来研究溶质粒子的浓度,并使用 Crank-Nicolson 方案的有限差分方法求解。迭代过程用于获得薄膜区域中浓度、压力和速度分量的解。已经观察到负载承载能力随着流体膜中溶质颗粒浓度的降低而降低。更多,
更新日期:2020-05-26
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