Accession Number : AD0737293

Title :   Investigation of Aerodynamic Analysis Problems in Transonis Maneuvering. Volume I.

Descriptive Note : Final rept. Jun 70-Aug 71,

Corporate Author : DOUGLAS AIRCRAFT CO LONG BEACH CALIF

Personal Author(s) : Gentry,Arvel E. ; Oliver,Wayne R.

Report Date : SEP 1971

Pagination or Media Count : 264

Abstract : This report describes the results of a study into the general problems of the aerodynamic analysis of airfoils and wings at transonic flight conditions. The basic guideline of this study was to assess, analyze and interpret the various methods available and to explore their further development where possible. The general aspects of the transonic maneuvering problem were reviewed. Particular emphasis was placed on methods for the analysis of airfoils leading to buffet onset prediction. This program includes a potential flow analysis, supercritical pressure calculations, and boundary layer calculation using either a finite-difference method or an integral method. Methods available for predicting pressures on three-dimensional wings are also compared. (Author)

Descriptors :   (*TRANSONIC AIRFOILS, NUMERICAL ANALYSIS), BOUNDARY LAYER, SEPARATION, PRESSURE, BUFFETING, STABILITY, WIND TUNNEL MODELS

Subject Categories : Aerodynamics
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE