
Accession Number : AD0289882
Title : APPLICATION OF THE NASA KERNELFUNCTION PROCEDURES TO GENERALLY DEFORMING WINGS
Corporate Author : AEROJETGENERAL CORP AZUSA CALIF
Report Date : OCT 1962
Pagination or Media Count : 1
Abstract : A method is described for obtaining generalized aerodynamic forces by utilizing the NASA KernelFunction Procedures. An evaluation of the generalized aerodynamic forces and the consequent flutter conditions is made for the particular case of a uniform, cantilevered, 70 degree delta wing. The supersonic KernelFunction Procedure was found to be inadequate for treating the elastic modes on this lowaspectratio wing; the subsonic procedure, however, appears to work satisfactorily. The theoretical flutter predictions are compared with the experimental results of NASA Report TM X53 (AD222 902). The KernelFunction predictions for quasisteady flow (k approaches O) appear to be superior to those for the complete unsteady case k = omega sub fc sub r/2V sub f. Based on this limited comparison, it appears that for this lowaspectratio wing the large transient effects predicted by linearized theory in the transonic regime may not actually exist. (Author)
Descriptors : *DELTA WINGS, AERODYNAMIC CHARACTERISTICS, ASPECT RATIO, DEFORMATION, ELASTIC PROPERTIES, GAS FLOW, INTEGRAL EQUATIONS, LIFT, MATHEMATICAL ANALYSIS, SUBSONIC FLOW, SUPERSONIC FLOW, THEORY, VIBRATION
Distribution Statement : APPROVED FOR PUBLIC RELEASE