Application of CFD techniques toward the validation of nonlinear aerodynamic modelsApplications of computational fluid dynamics (CFD) methods to determine the regimes of applicability of nonlinear models describing the unsteady aerodynamic responses to aircraft flight motions are described. The potential advantages of computational methods over experimental methods are discussed and the concepts underlying mathematical modeling are reviewed. The economic and conceptual advantages of the modeling procedure over coupled, simultaneous solutions of the gas dynamic equations and the vehicle's kinematic equations of motion are discussed. The modeling approach, when valid, eliminates the need for costly repetitive computation of flow field solutions. For the test cases considered, the aerodynamic modeling approach is shown to be valid.
Document ID
19860017793
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Schiff, L. B. (NASA Ames Research Center Moffett Field, CA, United States)
Katz, J. (NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
August 12, 2013
Publication Date
November 1, 1985
Publication Information
Publication: AGARD Unsteady Aerodynamics-Fundamentals and Applications to Aircraft Dynamics