Purpose

The purpose of this paper is to study the flow field characteristics of the micro-scale textured bearing surfaces using the lattice Boltzmann method based on the microscopic dynamics of the fluid.

Design/methodology/approach

Considering the inertia effects and the micro-scale effects, the models of a single micro-scale texture unit cell with different shapes and different film thickness ratios are established. The influence of pressure difference between inlet and outlet of the unit cell on flow characteristics is studied.

Findings

The surface pressure distribution, flow patterns and pressure contours in the flow field are obtained. The results reveal that the pressure difference has a significant influence on the characteristics of the micro-textured flow field.

Originality/value

The results have certain guiding significance for further step investigation on microscopic lubrication mechanism of the water-lubricated polymer bearings.

中文翻译：

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基于格子Boltzmann方法的水润滑轴承微尺度织构表面的流场特性

目的

本文的目的是基于流体的微观动力学，使用格子玻尔兹曼方法研究微尺度纹理轴承表面的流场特性。

设计/方法/方法

考虑惯性效应和微尺度效应，建立了具有不同形状和不同膜厚比的单个微尺度纹理晶胞的模型。研究了晶胞进出口压差对流动特性的影响。

发现

获得流场中的表面压力分布、流动模式和压力等值线。结果表明，压差对微织构流场的特性有显着影响。

原创性/价值

研究结果对进一步深入研究水润滑聚合物轴承的微观润滑机理具有一定的指导意义。