Accession Number : ADP006053

Title :   Low Reynolds Number Influence on Aerodynamic Performance of Hypersonic Lifting Vehicles,

Corporate Author : DEUTSCHE FORSCHUNGS- UND VERSUCHSANSTALT FUER LUFT- UND RAUMFAHRT E V GOETTING EN (GERMANY F R)

Personal Author(s) : Koppenwallner, Georg

Report Date : NOV 1987

Pagination or Media Count : 14

Abstract : The aerodynamic performance of lifting reentry vehicles in the high Mach number Ma > 10 and high altitude H > 50 km regime is analyzed. Due to the high flight velocity chemical reactions and due to the low density viscous and rarefaction effects are of importance. Free flight data of the US-Shuttle and low density wind tunnel data of DFVLR are used. It is found that aerodynamic performance loss and a destabilizing pitching moment change can be explained by viscous-rarefaction effects.

Descriptors :   *HYPERSONIC CHARACTERISTICS, *LIFTING REENTRY VEHICLES, MACH NUMBER, REYNOLDS NUMBER, SPACE SHUTTLES, PITCH(MOTION).

Subject Categories : Fluid Mechanics
      Guided Missile Reentry Vehicles

Distribution Statement : APPROVED FOR PUBLIC RELEASE