Accession Number : ADA166283

Title :   Component Base Flow Analysis.

Descriptive Note : Final technical rept. 19 Apr-30 Sep 83,

Corporate Author : GEORGIA INST OF TECH ATLANTA ENGINEERING EXPERIMENT STATION

Personal Author(s) : Sims,J L

PDF Url : ADA166283

Report Date : Oct 1985

Pagination or Media Count : 166

Abstract : A component model computer program for the solution of power-on base pressure at supersonic speeds has been modified to (1) include the effects of the upstream boundary layers upon the free shear layers and to (2) incorporate the angular recompression criterion developed by ONERA for the wake closure condition. After the program modifications were completed, an extensive set of calculations were made for comparison with experimental data. These comparisons showed that, in general, the calculated base pressures are greater than the experimental base pressures. This lack of agreement raises questions about the applicability of a single stream recompression criterion to the solution of the two stream problem. (Author)

Descriptors :   *GUIDED MISSILE COMPONENTS, *SUPERSONIC CHARACTERISTICS, *BASE FLOW, *BASE PRESSURE, COMPUTER PROGRAMS, MATHEMATICAL MODELS, MATHEMATICAL PREDICTION, EXPERIMENTAL DATA, COMPARISON, BOATTAIL AFTERBODIES, FLARED AFTERBODIES, CYLINDRICAL BODIES, CONICAL BODIES, BOUNDARY LAYER, FREE STREAM, SHEAR PROPERTIES, WAKE, CLOSURES, COMPRESSION, ANGLES, STREAMS, ATTACHMENT, GRAPHS

Subject Categories : Numerical Mathematics
      Computer Programming and Software
      Guided Missiles
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE