Numerical simulation of influence of boundary slip on lubrication performances considering cavitation of textured surface
Abstract— A finite element calculation model of friction pairs with different micro texture features was
established. Considering the condition of surface texture cavitation, numerical calculation was carried out by
computational fluid dynamics (CFD) software to study the influence of the fluid-solid boundary slip on the
lubrication performance of the friction pair under the hydrodynamic lubrication condition. The results
demonstrate that the friction and bearing capacity of the lubricating film are reduced by the boundary slip,
and the calculation results of the lubrication performance are influenced by the boundary condition of the
cavitation caused by the micro texture; using the cavitation boundary condition, the boundary slip effect is
enhanced and the theoretical comprehensive lubrication performance is improved; Compared with texture
with cross section of triangle, rectangle and ellipse, the spherical texture facilitates carrying capacity
improvement and there is the texture geometry size that facilitates lubrication property optimization.
Index Terms— Numerical simulation, Lubrication performance, Cavitation, Boundary slip, Micro-texture
Quandai Wang, Yulong Sun, Bingbing Guo, Xiaoli Hou, Pengyang Li, Yan Li
School of Mechanical and Precision Instrument Engineering, Xi’an University of Technology, CHINA
Cite: Quandai Wang, Yulong Sun, Bingbing Guo, Xiaoli Hou, Pengyang Li, Yan Li, "Numerical simulation of influence of boundary slip on lubrication performances considering cavitation of textured surface," Proceedings of 2019 the 9th International Workshop on Computer Science and Engineering, pp. 468-474, Hong Kong, 15-17 June, 2019.