Numerical modeling of rotordynamic coefficients for deliberately roughened stator gas annular seals

被引：75

作者：

Chochua, Gocha ^{[1
]}

Soulas, Thomas A. ^{[1
]}

机构：

[1] Dresser Rand Co, Olean, NY 14760 USA

来源：

JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME | 2007年 / 129卷 / 02期

关键词：

CFD; hole-pattern seal; gas seal; damper seal; rotor-dynamic; coefficients; centrifugal compressor;

D O I：

10.1115/1.2647531

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

A method is proposed for computations of rotordynamic coefficients of deliberately roughened stator gas annular seals using computational fluid dynamics. The method is based on a transient analysis with deforming mesh. Frequency-dependent direct and cross-coupled rotordynamic coefficients are determined as a response to an assigned rotor surface periodic motion: The obtained numerical results are found to be in good agreement with the available test data and one-dimensional tool predictions. The method can be used as a research tool or as a virtual annular seal test rig for seal design and optimization.

引用

页码：424 / 429

页数：6

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