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

verfasst von

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.

Organisationseinheit(en)

Institut für Turbomaschinen und Fluid-Dynamik

Externe Organisation(en)

Technische Universität Braunschweig

Typ

Artikel

Journal

International Journal of Gas Turbine, Propulsion and Power Systems

Band

15

Seiten

84-91

Anzahl der Seiten

8

Publikationsdatum

06.2024

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Maschinenbau

Elektronische Version(en)

https://doi.org/10.38036/jgpp.15.3_89 (Zugang: Offen)