Accession Number : ADA326819

Title :   Capsule Aerothermodynamics (L' Aerothermodynamique des Capsules).

Corporate Author : ADVISORY GROUP FOR AEROSPACE RESEARCH AND DEVELOPMENT NEUILLY-SUR-SEINE (FRAN CE)

PDF Url : ADA326819

Report Date : MAY 1997

Pagination or Media Count : 295

Abstract : This report is a compilation of the edited proceedings for the 'Capsule Aerothermodynamics' course held at the von Karman Institute for Fluid Dynamics (VKI) in Rhode-Saint-Genese, Belgium, 20-22 March 1995. At present, on a world scale, different capsules and penetrators are being considered for planetary entry, such as the Huygens probe to Titan, the Intermarsnet to Mars, and a probe attached to the Mercury orbiter to Venus. In addition, conceptual studies for earth re-entry are in progress for crew transport vehicles. Their geometries vary from low lift to drag ratio Apollo type to more advanced and complex bent biconic high lift to drag configurations. Because of the renewed interest in Capsule Aerothermodynamics, this course was organized to stimulate research in this field for young engineers as well as to update expertise for more experienced aerodynamicists. This series of lectures, supported by the AGARD Fluid Dynamics Panel and the von Karman Institute for Fluid Dynamics covered all aerodynamic design aspects related to planetary probe and capsule configurations. Critical phenomena occurring during the different regimes of flight from the rarefied through the hypersonic, supersonic, transonic and subsonic portions of flight are reviewed. The impact of real gas and rarefaction on capsule aerothermodynamics, and in particular on forebody and wake flows, is addressed. In addition, present day computational, and experimental capabilities to assess radiation, blackout, ablation and the characterization of the dynamic derivatives are discussed.

Descriptors :   *AEROTHERMODYNAMICS, *UNMANNED SPACECRAFT, AERODYNAMIC CONFIGURATIONS, REENTRY VEHICLES, COMPUTERIZED SIMULATION, PENETRATION, ARTIFICIAL SATELLITES, FLUID DYNAMICS, LUNAR PROBES, PLANETS, LIFT TO DRAG RATIO, RAREFACTION, BELGIUM, SPACE PROBES, MERCURY(PLANET), VENUS PROBES, AIRCRAFT DESIGN.

Subject Categories : Fluid Mechanics
      Thermodynamics
      Unmanned Spacecraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE