EXPERIMENTAL AND NUMERICAL STUDY ON THE EFFECT OF OGV CLOCKING ON ICD PERFORMANCE
Paper in proceeding, 2024

This paper presents a numerical and experimental investigation into the effects of compressor clocking and stage interaction on the performance of multi-stage axial compressors. The study focuses on the aerodynamic impact of the interaction between the intermediate compressor duct (ICD) and low-pressure compressor (LPC) outlet guide vanes (OGV). Experiments were conducted in Chalmers 2.5 stage low-pressure compressor facility, and numerical simulations were performed using a commercial CFD solver with a Reynolds-averaged Navier-Stokes (RANS) turbulence model. The results show that the clocking position can impact the OGV-ICD performance up to 3% compared to baseline with the dominant effects in the ICD where wake interaction impact transition and the secondary flow structures such as the radial traverse of the hub corner separation. This research provides valuable insights into the role of clocking in ICD design and performance, highlighting its importance as a design parameter. The study is the first to implement IR-thermography for flow visualization in a ICD under engine representative operational conditions.

uncertainty analysis

numerical simulations

IR-Thermography

clocking

low-pressure compressor

intermediate compressor duct

Author

Isak Jonsson

Chalmers, Mechanics and Maritime Sciences (M2), Fluid Dynamics

Alexandre Capitao Patrao

Chalmers, Mechanics and Maritime Sciences (M2), Fluid Dynamics

Petter Miltén

Chalmers, Mechanics and Maritime Sciences (M2), Fluid Dynamics

Carlos Xisto

Chalmers, Mechanics and Maritime Sciences (M2), Fluid Dynamics

Marcus Lejon

GKN Aerospace Services

Proceedings of the ASME Turbo Expo

Vol. 12C V12CT33A006
9780791888070 (ISBN)

69th ASME Turbo Expo 2024: Turbomachinery Technical Conference and Exposition, GT 2024
London, United Kingdom,

Subject Categories

Aerospace Engineering

Energy Engineering

Fluid Mechanics and Acoustics

DOI

10.1115/GT2024-123733

More information

Latest update

10/30/2024