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Open AccessArticle

Numerical Evaluation of Rotordynamic Coefficients for Compliant Foil Gas Seal

1
Faculty of Mechanical and Electrical Engineering, Kunming University of Science and Technology (KUST), Kunming CN-650500, China
2
Department of Mechanical Engineering, Blekinge Institute of Technology, SE-37179 Karlskrona, Sweden
3
Industrial Ecology Programme, Department of Energy and Process Engineering, Norwegian University of Science and Technology, N-7491 Trondheim, Norway
*
Author to whom correspondence should be addressed.
Appl. Sci. 2020, 10(11), 3828; https://doi.org/10.3390/app10113828
Received: 23 April 2020 / Revised: 19 May 2020 / Accepted: 26 May 2020 / Published: 31 May 2020
(This article belongs to the Section Applied Industrial Technologies)
Compliant foil gas seal is one of the advanced cylindrical gas seal technologies and can be commonly used in the secondary flow system of an aero-engine. It can enhance the dynamic stability of the aero-engine by meeting the steady requirements of the aero-engine seal system. To evaluate the performance of compliant foil gas seal, the steady performance of the gas seal is firstly analyzed to predict the sealing efficiency and obtain the pressure distribution of the gas seal in the compressible flow field. Then, the effects of the operating parameters on the rotordynamic coefficients are analyzed using the finite differential method. It can be used to predict the operation performance of the aero-engine and prepare for the optimization and test rig of compliant foil gas seal on the T-shaped groove. View Full-Text
Keywords: compliant foil gas seal; rotordynamic coefficients; numerical evaluation compliant foil gas seal; rotordynamic coefficients; numerical evaluation
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MDPI and ACS Style

Wang, X.; Liu, M.; Kao-Walter, S.; Hu, X. Numerical Evaluation of Rotordynamic Coefficients for Compliant Foil Gas Seal. Appl. Sci. 2020, 10, 3828.

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