Accession Number : AD0668772

Title :   A NUMERICAL PROCEDURE FOR DETERMINING THE COMBINED VISCID-INVISCID FLOW FIELDS OVER GENERALIZED THREE-DIMENSIONAL BODIES. VOLUME I. DISCUSSION OF METHODS AND RESULTS, AND INSTRUCTIONS FOR USE OF COMPUTER PROGRAM.

Descriptive Note : Final rept. 1 Jul 62-1 Jun 67,

Corporate Author : NORTHROP CORP HAWTHORNE CALIF NORAIR DIV

Personal Author(s) : Powers,S. A. ; Niemann,A. F. , Jr. ; Der,J. , Jr

Report Date : DEC 1967

Pagination or Media Count : 178

Abstract : The report describes the methods and computer programs developed for determining the combined viscid-inviscid flow fields over generalized three-dimensional bodies. The inviscid flow field is determined by a three-dimensional method of characteristics program, while the laminar boundary layer is determined by a three-dimensional explicit finite difference method. The complete program, which can treat either ideal or real gas flows, is highly automated and provides many optional paths of analysis. This volume discusses the methods used in calculating both the viscid and inviscid flow fields, and the application of these methods by means of digital computer. Results are given for the viscid and inviscid flows over a delta wing, and for the viscid flow over an ellipsoid. The results are shown to be in good agreement with experimental results. (Author)

Descriptors :   (*DELTA WINGS, *THREE DIMENSIONAL FLOW), FLOW FIELDS, NUMERICAL METHODS AND PROCEDURES, COMPUTER PROGRAMS, LAMINAR BOUNDARY LAYER, ELLIPSOIDS, VISCOSITY, DIGITAL COMPUTERS, SUPERSONIC CHARACTERISTICS, GUIDED MISSILES, SUBSONIC CHARACTERISTICS, TRANSONIC CHARACTERISTICS, SHOCK WAVES, BOUNDARY LAYER

Subject Categories : Aerodynamics
      Aircraft
      Guided Missiles
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE