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Influence wave mode computations of multi-passage cascade flows
Date
2000-01-01
Author
Tuncer, İsmail Hakkı
Metadata
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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Copyright © 2000 by ASME.A Navier-Stokes solution method with overset grids is employed to compute the Influence Wave Modes of a compressor cascade in transonic flow conditions. The computed predictions are compared against the experimental data and the predictions based on Traveling Wave Mode computations performed using a different Navier-Stokes solver. In the present method, a five-passage flow domain is discretized with O-type subgrids around each blade and a rectangular background subgrid, A simple, robust numerical algorithm is used to localize moving intergrid boundary points, and to interpolate solution variables across the subgrids. The influence wave mode computation predicts a strong influence of the pitching mid-blade on the shock position of the neighboring blades. The predictions agree with the experimental data fairly well, and shows an improvement over the Traveling Wave Mode predictions.
Subject Keywords
Cascades (Fluid Dynamics)
,
Computation
,
Flow (Dynamics)
,
Waves
,
Blades
,
Traveling Waves
,
Algorithms
,
Compressors
,
Shock (Mechanics)
,
Transonic Flow
URI
https://hdl.handle.net/11511/56279
DOI
https://doi.org/10.1115/2000-gt-0415
Conference Name
ASME Turbo Expo 2000: Power for Land, Sea, and Air
Collections
Department of Aerospace Engineering, Conference / Seminar
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İ. H. Tuncer, “Influence wave mode computations of multi-passage cascade flows,” Munich, Germany, 2000, vol. 4, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/56279.