Influence wave mode computations of multi-passage cascade flows

Date

2000-01-01

Author

Tuncer, İsmail Hakkı

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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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Citation Formats

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.