Rotordynamic characteristics of a rotor with labyrinth gas seals. Part 1: comparison with Childs' experiments

被引:23
作者
Huang, DG [1 ]
Li, XS
机构
[1] Shanghai Univ, Shanghai Inst Appl Math & Mech, Shanghai 200072, Peoples R China
[2] Southeast Univ, Natl Vibrat Engn Res Ctr Turbogenerators, Nanjing, Peoples R China
关键词
rotordynamic coefficients; labyrinth seals; three-dimensional unsteady computation;
D O I
10.1243/095765004323049896
中图分类号
O414.1 [热力学];
学科分类号
摘要
A numerical method based on three-dimensional unsteady compressible Navier-Stokes equations with moving boundaries is employed to predict the fluid reaction forces and the rotordynamic coefficients of labyrinth gas seals. A large number of simulations under various conditions have been conducted. Comparison of the values from an experimental, two-control-volume model and current unsteady computational fluid dynamics (CFD) under different conditions shows that the computer code works well for most of the simulations.
引用
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页码:171 / 177
页数:7
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