基于N-S方程的微造型表面动压润滑性能的分析研究  

Research on Hydrodynamic Lubrication of Textured Surfaces Based on Navier-Stokes Equation

作　　者：王霄[1] 孟小霞[1] 刘东雷[1] 刘会霞[1] 

机构地区：[1]江苏大学机械工程学院,江苏镇江212013

出　　处：《润滑与密封》2007年第3期38-42,共5页Lubrication Engineering

基　　金：国家自然科学基金项目(50475122);江苏省科技攻关项目(BE2001013);江苏省高校自然科学基金重点项目(03KJA460020)

摘　　要：根据微造型的几何模型特点,基于N-S方程研究了微造型表面的动压润滑性能,并与基于雷诺方程求解的微造型表面的动压润滑性能进行了比较。结果表明:合适的微造型可以产生动压效果;通过比较N-S方程和雷诺方程求解动压润滑的差异,发现惯性力将对微造型的动压效果产生显著的影响,在微造型表面惯性力的影响是不可以忽略的;微造型的几何参数对润滑性能存在着很大的影响。According to the characters of geometrical model in textured surfaces, hydrodynamic lubrication of textured surfaces was studied based on Navier-Stokes, and the situation result was compared with that based on Reynolds equations. The result shows that suitable textured surfaces can produce hydrodynamic lubrication; By comparing the differences of using Navier-Stokes equations and Reynolds equations in solving the hydrodynamic lubrication of textured surfaces, it is shown that the inertial effect has a remarkable effect on hydrodynamic lubrication; the geometry parameter of textured surfaces plays a great part in lubrication.

关 键 词：微造型 动压润滑 N—S方程 雷诺方程 CFD(计算流体力学) 惯性力 

分 类 号：TH117.1[机械工程—机械设计及理论]