Computational methods for unsteady transonic flowsComputational methods for unsteady transonic flows are surveyed with emphasis upon applications to aeroelastic analysis and flutter prediction. Computational difficulty is discussed with respect to type of unsteady flow; attached, mixed (attached/separated) and separated. Significant early computations of shock motions, aileron buzz and periodic oscillations are discussed. The maturation of computational methods towards the capability of treating complete vehicles with reasonable computational resources is noted and a survey of recent comparisons with experimental results is compiled. The importance of mixed attached and separated flow modeling for aeroelastic analysis is discussed and recent calculations of periodic aerodynamic oscillations for an 18 percent thick circular arc airfoil are given.
Document ID
19870035144
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Edwards, John W. (NASA Langley Research Center Hampton, VA, United States)
Thomas, James L. (NASA Langley Research Center Hampton, VA, United States)