Computational analyses are carried out to predict the effect of the hub leakage flow from the inner banded stator cavities on the overall performance of an axial high pressure compressor. The results of a full fidelity simulation model, which includes cavities, sealing and main flow, is compared with models without the hub leakage flow. The CFD prediction confirms a significant effect from the hub leakage on the performance of the multistage axial compressor. A simpler and faster CFD modeling technique is explored and discussed for the modeling of the effect of the hub cavity leakage. In this approach, costly details of the stator cavities are ignored. Transfer functions or correlations are derived from the 1.5 stage (IGV-Rotor1-Stator1) of a multistage compressor having inner banded stator cavity. These correlations are used as boundary conditions to the primary flow path of the compressor while carrying out the simplified CFD models for the complete 4 stage compressor model. A MINITAB study is conducted to understand the most influencing parameters and their interactions in deriving the correlations. Analyses are then carried out using the simplified model with the hub leakage boundary conditions derived from these correlations. The CFD results of the full fidelity simulation and the simplified models are compared in this paper.
Skip Nav Destination
ASME Turbo Expo 2012: Turbine Technical Conference and Exposition
June 11–15, 2012
Copenhagen, Denmark
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
978-0-7918-4474-8
PROCEEDINGS PAPER
Modeling of the Hub Cavity Leakage Flows in Axial Compressors
Hasham H. Chougule,
Hasham H. Chougule
Honeywell Technology Solutions, Bangalore, KA, India
Search for other works by this author on:
Anand Dhamarla,
Anand Dhamarla
Honeywell Technology Solutions, Bangalore, KA, India
Search for other works by this author on:
Shraman Goswami,
Shraman Goswami
Honeywell Technology Solutions, Bangalore, KA, India
Search for other works by this author on:
Mahmoud L. Mansour
Mahmoud L. Mansour
Honeywell Aerospace, Phoenix, AZ
Search for other works by this author on:
Hasham H. Chougule
Honeywell Technology Solutions, Bangalore, KA, India
Anand Dhamarla
Honeywell Technology Solutions, Bangalore, KA, India
Shraman Goswami
Honeywell Technology Solutions, Bangalore, KA, India
Mahmoud L. Mansour
Honeywell Aerospace, Phoenix, AZ
Paper No:
GT2012-68928, pp. 2113-2121; 9 pages
Published Online:
July 9, 2013
Citation
Chougule, HH, Dhamarla, A, Goswami, S, & Mansour, ML. "Modeling of the Hub Cavity Leakage Flows in Axial Compressors." Proceedings of the ASME Turbo Expo 2012: Turbine Technical Conference and Exposition. Volume 8: Turbomachinery, Parts A, B, and C. Copenhagen, Denmark. June 11–15, 2012. pp. 2113-2121. ASME. https://doi.org/10.1115/GT2012-68928
Download citation file:
25
Views
0
Citations
Related Proceedings Papers
Related Articles
Uncertainty Quantification of Leakages in a Multistage Simulation and Comparison With Experiments
J. Fluids Eng (February,2018)
Numerical Characterization of Hot-Gas Ingestion Through Turbine Rim Seals
J. Eng. Gas Turbines Power (March,2017)
Modeling Shrouded Stator Cavity Flows in Axial-Flow Compressors
J. Turbomach (January,2000)
Related Chapters
Other Components and Variations
Axial-Flow Compressors
Development of Simulatiom of Pedestrian Uncontrolled Crossing Behavior
International Conference on Computer Technology and Development, 3rd (ICCTD 2011)
Introduction
Design and Analysis of Centrifugal Compressors