Efficient procedure for cascade aeroelastic stability determination using nonlinear, time-marching aerodynamic solvers
Publication
, Journal Article
Mahajan, AJ; Bakhle, MA; Dowell, EH
Published in: Collection of Technical Papers - AIAA/ASME Structures, Structural Dynamics and Materials Conference
January 1, 1993
A numerical eigenvalue problem formulation and a practical calculation procedure for exact eigenvalues and corresponding eigenvectors are developed and applied to a nonlinear, two-dimensional, time-marching full potential solver for cascade aeroelastic stability analysis. This procedure is based on the Lanczos recursive method and it directly calculates stability information about a nonlinear steady state. It is compared to conventional approaches in the frequency and time domains developed earlier and is found to be 100-10.000 times more computationally efficient. Eigenvalue constellations and the flutter results for flow through a cascade SR5 propfan airfoil are presented.
Duke Scholars
Published In
Collection of Technical Papers - AIAA/ASME Structures, Structural Dynamics and Materials Conference
ISSN
0161-5750
Publication Date
January 1, 1993
Issue
pt 5
Start / End Page
2856 / 2866
Citation
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Mahajan, A. J., Bakhle, M. A., & Dowell, E. H. (1993). Efficient procedure for cascade aeroelastic stability determination using nonlinear, time-marching aerodynamic solvers. Collection of Technical Papers - AIAA/ASME Structures, Structural Dynamics and Materials Conference, (pt 5), 2856–2866.
Mahajan, A. J., M. A. Bakhle, and E. H. Dowell. “Efficient procedure for cascade aeroelastic stability determination using nonlinear, time-marching aerodynamic solvers.” Collection of Technical Papers - AIAA/ASME Structures, Structural Dynamics and Materials Conference, no. pt 5 (January 1, 1993): 2856–66.
Mahajan AJ, Bakhle MA, Dowell EH. Efficient procedure for cascade aeroelastic stability determination using nonlinear, time-marching aerodynamic solvers. Collection of Technical Papers - AIAA/ASME Structures, Structural Dynamics and Materials Conference. 1993 Jan 1;(pt 5):2856–66.
Mahajan, A. J., et al. “Efficient procedure for cascade aeroelastic stability determination using nonlinear, time-marching aerodynamic solvers.” Collection of Technical Papers - AIAA/ASME Structures, Structural Dynamics and Materials Conference, no. pt 5, Jan. 1993, pp. 2856–66.
Mahajan AJ, Bakhle MA, Dowell EH. Efficient procedure for cascade aeroelastic stability determination using nonlinear, time-marching aerodynamic solvers. Collection of Technical Papers - AIAA/ASME Structures, Structural Dynamics and Materials Conference. 1993 Jan 1;(pt 5):2856–2866.
Published In
Collection of Technical Papers - AIAA/ASME Structures, Structural Dynamics and Materials Conference
ISSN
0161-5750
Publication Date
January 1, 1993
Issue
pt 5
Start / End Page
2856 / 2866