Study of Leakage Flow Boundary Model-based Sealing Labyrinth Analysis Method

Affiliation of Author(s):能源与动力学院

Journal:Binggong Xuebao

Abstract:In view of the complex structure of labyrinth channel, changing sealing gap and a large amount of grids in numerical simulation calculation domain, a high-speed straight-through sealing labyrinth structure adopting different sealing configuration parameters is investigated. A labyrinth leakage flow boundary model is established based on test results, which can reveal the effects of environmental parameters and sealing configuration parameters on sealing property. The results show that the proposed model can be used to repeat the experimental rule and reliably simulate the labyrinth leakage flow in multistage compressor. The calculated sresult shows that 0.5% flow leakage would result in decreasing the flow, pressure ratio and efficiency of a three-stage compressor by 1.4%, 0.3% and 1.1%, respectively. © 2017, Editorial Board of Acta Armamentarii. All right reserved.

ISSN No.:1000-1093

Translation or Not:no

Date of Publication:2017-04-01

Co-author:Cao, Yong-Hua,Zhang, Yi-Bin

Correspondence Author:fz

Date of Publication:2017-04-01