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Author(s):
Pugachev, A. O.; Deckner, M. 
Title:
CFD Prediction and Test Results of Stiffness and Damping Coefficients for Brush-Labyrinth Gas Seals 
Abstract:
This paper presents ongoing investigations on calculation and measurement of rotordynamic coefficients for brush-labyrinth gas seals. The seals are tested on static and dynamic test rigs to measure leakage, pressure distribution, and seal specific forces. To predict seal performance a full three-dimensional eccentric CFD model is considered. Rotordynamic coefficients are calculated using the whirling rotor method. The bristle pack of the brush seal is modeled using the porous medium approach. Th...    »
 
Book / Congress title:
Proceedings of ASME Turbo Expo 2010: Power for Land, Sea and Air 
Year:
2010 
Pages:
11 
Bookseries volume:
GT2010-22667