An approximated method of calculating the cellular insert influence in the carrying capacity of the direct-flow labyrinth seal

A method for calculating the flowrate of the gas flowing through the cellular insert cells over the labyrinth seal strip is proposed. The gas density is taken to be average with respect to the decisive section. It is assumed that jets flowing out of cells disrupt the direct flow of the labyrinth sea...

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Bibliographic Details
Published in:Russian aeronautics 2010-12, Vol.53 (4), p.416-420
Main Authors: Bogomolov, E. N., Piotukh, S. M., Simonov, I. A., Uglov, V. A.
Format: Article
Language:English
Subjects:
Aircraft and Rocket Engine Design and Development
Approximation
Automotive Engineering
Carrying capacity
Cellular
Engineering
Gas density
Inserts
Jets
Labyrinth seals
Mathematical analysis
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Summary:A method for calculating the flowrate of the gas flowing through the cellular insert cells over the labyrinth seal strip is proposed. The gas density is taken to be average with respect to the decisive section. It is assumed that jets flowing out of cells disrupt the direct flow of the labyrinth seal. A practical implementation of the method is confirmed by the known experimental data.
ISSN:1068-7998
1934-7901
DOI:10.3103/S1068799810040070