This paper describes the development of the source-doublet-based potential paneling method for oscillating cascade unsteady aerodynamic load predictions. By using the integral influence coefficient method and by using the interblade phase angles, the unsteady loads on an oscillating cascade can be accurately predicted at a minimum cost. As the grids are placed only on the blade surfaces, the blades are allowed to vibrate without grid deformation problems. Four notable subsonic oscillating cascade test cases that cover most important parameters, e.g., blade geometry, interblade phase angle, flow coefficient, flow speed, frequency, etc., are studied in this paper. The agreement between the present solutions and other numerical/experimental results demonstrates the robustness of the present model. Applicability of the method for realistic compressible flow cascades is also discussed.
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July 1994
Research Papers
Unsteady Aerodynamic Analysis of Subsonic Oscillating Cascade
S. H. Chen,
S. H. Chen
Rocketdyne Division, Rockwell International Corporation, Canoga Park, CA 91303
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A. H. Eastland,
A. H. Eastland
Rocketdyne Division, Rockwell International Corporation, Canoga Park, CA 91303
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E. D. Jackson
E. D. Jackson
Rocketdyne Division, Rockwell International Corporation, Canoga Park, CA 91303
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S. H. Chen
Rocketdyne Division, Rockwell International Corporation, Canoga Park, CA 91303
A. H. Eastland
Rocketdyne Division, Rockwell International Corporation, Canoga Park, CA 91303
E. D. Jackson
Rocketdyne Division, Rockwell International Corporation, Canoga Park, CA 91303
J. Turbomach. Jul 1994, 116(3): 501-512 (12 pages)
Published Online: July 1, 1994
Article history
Received:
March 1, 1992
Online:
June 9, 2008
Citation
Chen, S. H., Eastland, A. H., and Jackson, E. D. (July 1, 1994). "Unsteady Aerodynamic Analysis of Subsonic Oscillating Cascade." ASME. J. Turbomach. July 1994; 116(3): 501–512. https://doi.org/10.1115/1.2929439
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