台阶齿蜂窝衬套封严结构风阻特性的研究  

Investigation of Windage Heating on Step Labyrinth Seals with Honeycomb Bush

作　　者：纪国剑[1,2] 吉洪湖[1] 黄云霞[1] 帅海山[1] 王政伟[2] 

机构地区：[1]南京航空航天大学能源与动力学院,江苏南京210016 [2]常州大学机械与能源工程学院,江苏常州213016

出　　处：《润滑与密封》2012年第4期43-47,共5页Lubrication Engineering

基　　金：江苏省高校自然科学基金项目(11KJB470001)

摘　　要：对台阶齿-蜂窝衬套篦齿封严结构的泄漏特性和风阻特性进行数值模拟,得到流体的泄漏特性和风阻特性随转速、压比、节流间隙和蜂窝结构参数的变化规律。结果表明:泄漏流体风阻生热总温升随转速和蜂窝单元直径的增大而增大,随压比和节流间隙的增大而减小;蜂窝深度对风阻生热影响不大,基本可以忽略。Numerical investigation of windage heating and leakage characteristic on step labyrinth seals with honeycomb bush was made to study the effect of rotation speed, the pressure ratio of inlet and outlet, throttle clearance and structure of honeycomb bush. The results show that the total temperature of leakage fluid caused by windage heating is increased with the increase of the rotation speed and the size of honeycomb cell and decreased .with the increase of the pressure ratio and the throttle clearance. The windage heating is almost unchanged with the depth of honeycomb bush.

关 键 词：台阶篦齿 蜂窝衬套 泄漏特性 风阻生热 

分 类 号：V231.1[航空宇航科学与技术—航空宇航推进理论与工程]