CFD simulation of microscale flow field in spiral groove dry gas seal

Author

Jing, Xu ; Xudong, Peng ; Shaoxian, Bai ; Xiangkai, Meng

Author_Institution

Coll. of Mech. Eng., Zhejiang Univ. of Technol., Hangzhou, China

fYear

2012

fDate

8-10 July 2012

Firstpage

211

Lastpage

217

Abstract

The three dimension micro-scale flow field in spiral groove dry gas seals(S-DGS) is simulated by using CFD software based on gas lubrication theory in this article. Effect of gas flow state on the Seal performance is analyzed under different gas film thickness. Laminar model and k-ε turbulent model are used separately to obtain the open force, leakage rate. The results show that gas pressure distribution is in well agreement with reference. The turbulence effect of gas film can enhance the hydrodynamic effect and hence enlarge the open force, while decrease the leakage rate of seal.

Keywords

computational fluid dynamics; flow simulation; hydrodynamics; laminar flow; lubrication; seals (stoppers); turbulence; CFD simulation; CFD software; Laminar model; gas film thickness; gas film turbulence effect; gas flow state; gas lubrication theory; gas pressure distribution; hydrodynamic effect; k-ε turbulent model; seal leakage rate; seal performance; spiral groove dry gas seal; three dimension microscale flow field; Equations; Films; Fluids; Force; Mathematical model; Seals; Spirals; CFD; laminar; simulation; turbulence;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechatronics and Embedded Systems and Applications (MESA), 2012 IEEE/ASME International Conference on

Conference_Location

Suzhou

Print_ISBN

978-1-4673-2347-5

Type

conf

DOI

10.1109/MESA.2012.6275564

Filename

6275564