Publication Date:
2019-07-13
Description:
Applications 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 gasdynamic 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.
Keywords:
AERODYNAMICS
Type:
NASA-TM-86715
,
REPT-85212
,
NAS 1.15:86715
,
AGARD Fluid Dyn. Panel and Flight Mech. Panel Symp. on Unsteady Aerodyn.: Fundamentals and Appl. to Aircraft Dyn.; May 06, 1985 - May 09, 1985; Gottingen; Germany
Format:
application/pdf
