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Thermoelastohydrodynamic behaviour of inclined-ellipse dimpled gas face seals

Thermoelastohydrodynamic behaviour of inclined-ellipse dimpled gas face seals Abstract The thermoelastohydrodynamic performance of an inclined-ellipse dimpled gas face seal is analyzed. The pressure distributions of the gas film and temperature fields of the seal rings and gas film are presented considering thermal and elastic distortions. Then, the influences of texturing parameters, including dimple inclination angle and dimple depth, on sealing performance are investigated under different operating parameters such as rotational speeds and seal pressures. The results show that face distortions lead to a decrease in the hydrodynamic effect at high rotational speed. The analysis shows that the opening force can decrease by more than 50% as the rotational speed increases from 0 to 35000 r min−1. The influence of face distortion on the seal performance, such as opening force and leakage characteristic, gradually increases with the rotational speed. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png "Science China Technological Sciences" Springer Journals

Thermoelastohydrodynamic behaviour of inclined-ellipse dimpled gas face seals

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References (18)

Publisher
Springer Journals
Copyright
2016 Science China Press and Springer-Verlag Berlin Heidelberg
ISSN
1674-7321
eISSN
1869-1900
DOI
10.1007/s11431-016-0561-5
Publisher site
See Article on Publisher Site

Abstract

Abstract The thermoelastohydrodynamic performance of an inclined-ellipse dimpled gas face seal is analyzed. The pressure distributions of the gas film and temperature fields of the seal rings and gas film are presented considering thermal and elastic distortions. Then, the influences of texturing parameters, including dimple inclination angle and dimple depth, on sealing performance are investigated under different operating parameters such as rotational speeds and seal pressures. The results show that face distortions lead to a decrease in the hydrodynamic effect at high rotational speed. The analysis shows that the opening force can decrease by more than 50% as the rotational speed increases from 0 to 35000 r min−1. The influence of face distortion on the seal performance, such as opening force and leakage characteristic, gradually increases with the rotational speed.

Journal

"Science China Technological Sciences"Springer Journals

Published: Apr 1, 2017

Keywords: Engineering, general

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