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Steady, Oscillatory and Unsteady, Subsonic and Supersonic Aerodynamics (SOUSSA) for complex aircraft configurationsThe Green's function method and the computer program SOUSSA (Steady Oscillatory and Unsteady Subsonic and Supersonic Aerodynamics) are reviewed. The Green's function method is applied to the fully unsteady potential equation yielding an integro-differential-delay equation. This equation is approximated by a set of differential-delay equations in time using the finite element method. The Laplace transform is used to yield a matrix relating the velocity potential to the normal wash. The matrix of the generalized aerodynamic forces is obtained by premultiplying and postmultiplying the matrices relating generalized forces to the potential and the normal wash by the generalized coordinates. The program SOUSSA is compared with existing numerical results. Results indicate that the program is not only general, flexible, and easy to use, but also accurate and fast.
Document ID
19780014093
Document Type
Conference Paper
Authors
Morino, L. (Boston Univ. Boston, MA, United States)
Tseng, K. (Boston Univ. Boston, MA, United States)
Date Acquired
August 9, 2013
Publication Date
February 1, 1978
Publication Information
Publication: AGARD Unsteady Aerodyn.
Subject Category
AERODYNAMICS
Funding Number(s)
CONTRACT_GRANT: NGR-22-004-030
Distribution Limits
Public
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