Numerical Investigation of the Effect of Squealer Tips on the Performance of a 4½-Stage Axial Compressor

authored by

Pascal Franke, Lars Wein, Joerg R. Seume, Dajan Mimic

Abstract

This paper aims to quantify the numerical influence of squealer tips on the performance of a 4½-stage axial compressor. For this purpose, the performance map, obtained by steady-state calculations using the k-ω shear-stress transport turbulence model and the TRACE flow solver, is simulated for two setups: the reference setup and a setup with squealer tips added. The squealer tips enhance the stage-wise compressor performance by reducing secondary flow and flow separation at the casing. The stage total-pressure ratio is thus improved by up to 0.28%. The deterioration in the fourth-stage flow, however, prevents these improvements from enhancing the overall compressor performance due to an altered radial loading by the squealer tips.

Organisation(s)

Institute of Turbomachinery and Fluid Dynamics

External Organisation(s)

Technische Universität Braunschweig

Type

Article

Journal

International Journal of Gas Turbine, Propulsion and Power Systems

Volume

15

Pages

84-91

No. of pages

8

Publication date

06.2024

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Mechanical Engineering

Electronic version(s)

https://doi.org/10.38036/jgpp.15.3_89 (Access: Open)