Inertia effects in textured hydrodynamic contacts

被引:31
作者
Cupillard, S. [1 ]
Glavatskih, S. [1 ]
Cervantes, M. J. [2 ]
机构
[1] Lulea Univ Technol, Div Machine Elements, SE-97187 Lulea, Sweden
[2] Lulea Univ Technol, Div Fluid Mech, SE-97187 Lulea, Sweden
关键词
hydrodynamic contacts; textured surface; inertia effects; fore-region;
D O I
10.1243/13506501JET697
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
A flow analysis is carried out for a parallel textured slider to investigate the role of fluid inertia. Numerical simulations are performed for a laminar, two-dimensional, steady and isothermal flow. Stokes solutions are compared with Navier-Stokes solutions at the same Reynolds number. A range of texture depths is analysed. It is shown that there is an optimum value of texture depth that provides maximum load-carrying capacity. It is also shown that there is a critical depth value. Inertia has a negative effect on the load-carrying capacity for depths higher than the critical value, whereas it has a positive effect for lower depths. For a given texture depth, these effects are amplified as the Reynolds number increases. The global effect of inertia is positive when a realistic configuration of a parallel textured slider with a fore-region is considered.
引用
收藏
页码:751 / 756
页数:6
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