Taylor-Couette流与旋转圆柱轴间流体膜润滑与密封  

Taylor-Couette Flow and Lubrication or Seal by Hydro-membrane between the Rotating Cylinders

作　　者：袁艳平[1] 吉洪湖[1] 高久好[2] 杜雁霞[2] 

机构地区：[1]南京航空航天大学能源动力学院,江苏南京210016 [2]解放军理工大学,江苏南京210007

出　　处：《润滑与密封》2006年第9期192-196,共5页Lubrication Engineering

基　　金：国家自然科学基金资助项目(50076017)

摘　　要：对国内外Taylor-Couette流的形成与发展,旋转圆柱轴间流体膜润滑与密封的数值计算及其相关实验的研究现状进行了分析。分析结果表明,应用雷诺润滑方程求解旋转圆柱轴间流体膜润滑与密封问题有其先天的不足,雷诺润滑方程的推导过程中所采用的假设不尽合理,在雷诺润滑方程的基础上进行惯性力修正和涡粘性修正,或者是人为地对3种流动进行解耦,只能作为一种近似计算。从Taylor-Couette流的基本理论出发,计算旋转圆柱轴间流体膜润滑与密封应是计算其层流问题的发展方向。对于湍流润滑与密封,直接模拟(DNS)和大涡模拟(LES)应是首选方案。The formation and development of the Taylor-Couette flow,numerical simulation and experiment of the lubrication or seal by hydro-membrane between the rotating cylinders were analyzed. The result shows that due to the unreasonable assumption during deduction of the equation, the Reynolds equation is not suitable for the simulation of this flow although modification of the inertia force and viscidity, the correct simulation should be based on the basic theory of the Taylor-Couette flow. As for the turbulent lubrication or seal, the two equations model adopts wall function method and Boussinesq suppose, the Reynolds stress model （RSM） also adopts wall function method and therefore the large-eddy simulation （LES） and direct numerical simulation （DNS） are the best methods.

关 键 词：Taylor-Couette流 润滑 密封 涡 模拟 

分 类 号：TB42[一般工业技术]