Influence of Seal Cavity Leakage Flow on Compressor Performance Investigated with a Circumferentially Averaged Method

Liang, Dong and Gui, Xingmin and Jin, Donghai (2021) Influence of Seal Cavity Leakage Flow on Compressor Performance Investigated with a Circumferentially Averaged Method. Applied Sciences, 11 (2). p. 780. ISSN 2076-3417

[thumbnail of applsci-11-00780.pdf] Text
applsci-11-00780.pdf - Published Version

Download (3MB)

Abstract

In order to investigate the effect of seal cavity leakage flow on a compressor’s performance and the interaction mechanism between the leakage flow and the main flow, a one-stage compressor with a cavity under the shrouded stator was numerically simulated using an inhouse circumferentially averaged through flow program. The leakage flow from the shrouded stator cavity was calculated simultaneously with main flow in an integrated manner. The results indicate that the seal cavity leakage flow has a significant impact on the overall performance of the compressor. For a leakage of 0.2% of incoming flow, the decrease in the total pressure ratio was 2% and the reduction of efficiency was 1.9 points. Spanwise distribution of the flow field variables of the shrouded stator shows that the leakage flow leads to an increased flow blockage near the hub, resulting in drop of stator performance, as well as a certain destructive effect on the flow field of the main passage.

Item Type: Article
Subjects: STM Library > Engineering
Depositing User: Managing Editor
Date Deposited: 19 Jan 2023 09:58
Last Modified: 12 Mar 2024 04:08
URI: http://open.journal4submit.com/id/eprint/1473

Actions (login required)

View Item
View Item