Modern wing flutter analysis by computational fluid dynamics methodsThe application and assessment of the recently developed CAP-TSD transonic small-disturbance code for flutter prediction is described. The CAP-TSD code has been developed for aeroelastic analysis of complete aircraft configurations and was previously applied to the calculation of steady and unsteady pressures with favorable results. Generalized aerodynamic forces and flutter characteristics are calculated and compared with linear theory results and with experimental data for a 45 deg sweptback wing. These results are in good agreement with the experimental flutter data which is the first step toward validating CAP-TSD for general transonic aeroelastic applications. The paper presents these results and comparisons along with general remarks regarding modern wing flutter analysis by computational fluid dynamics methods.
Document ID
19880064102
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Cunningham, Herbert J. (NASA Langley Research Center Hampton, VA, United States)
Batina, John T. (NASA Langley Research Center Hampton, VA, United States)
Bennett, Robert M. (NASA Langley Research Center Hampton, VA, United States)