Accession Number : AD0731251

Title :   Near-Free Molecule Drag of Slender Cones,

Corporate Author : RAND CORP SANTA MONICA CALIF

Personal Author(s) : Willis,D. R.

Report Date : DEC 1970

Pagination or Media Count : 57

Abstract : A systematic theoretical and empirical framework is for the study and correlation of aerodynamic drag information is an important application of the methodology of rarefied gas dynamics. In this paper a flight regime is considered for a slender pointed cone where the first effects on drag of intermolecular collisions between gas molecules which have already struck a body surface, and freestream molecules, appear. The phenomena discussed here correspond to hypersonic reentry into the upper atmosphere, where the first corrections to the traditional free-molecule drag coefficient are likely to be significant. (Author)

Descriptors :   (*REENTRY VEHICLES, DRAG), CONICAL BODIES, HYPERSONIC CHARACTERISTICS, ANGLE OF ATTACK, FLOW FIELDS, MATHEMATICAL ANALYSIS, ATMOSPHERE ENTRY, SLENDER BODIES

Subject Categories : Guided Missile Reentry Vehicles
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE