Accession Number : AD0282082

Title :   HEATING PROBLEMS OF ENTRY INTO PLANETARY ATMOSPHERES FROM SUPERCIRCULAR ORBITING VELOCITIES,

Corporate Author : GENERAL ELECTRIC CO PHILADELPHIA PA MISSILE AND SPACE DIV

Personal Author(s) : Scala,Sinclaire M.

Report Date : OCT 1961

Pagination or Media Count : 55

Abstract : A brief review is given of the influence of trajectory parameters on the severity of the environmental conditions to which a vehicle traveling at supercircular velocities in a planetary atmosphere will be exposed. The governing equations for the determination of heat transfer in partially ionized gases are discussed. Currently available theoretical techniques of estimating the transport and thermodynamic properties of partially ionized gases are reviewed, and inadequacies are summarized. Available theories for predicting the convective (aerothermochemicla) and radiative heat transfer at superorbital flight speeds are discussed, and new theoretical and experimental results are given for the effects of ionization upon convective stagnation point heat transfer. Some estimates are given of the anticipated thermal stress levels which will be encountered during lifting re-entry from outer space. Finally, an integrated approach to the determination of the solution to the aerothermo-viscoelastic problem of supercircular flight is outlined. (Author)

Descriptors :   *RE-ENTRY AERODYNAMICS, *SYMPOSIA, *HEAT TRANSFER, *PLANETARY ATMOSPHERES, FLIGHT PATHS, REENTRY VEHICLES, TRANSPORT PROPERTIES, THERMODYNAMICS, CONVECTION, THERMAL RADIATION, SUPERSONICS, IONIZATION, LIFT, ELASTIC PROPERTIES, VISCOSITY, ENTHALPY, DIFFUSION, TEMPERATURE, IONS, SPECIFIC HEAT, AERODYNAMIC HEATING, ATMOSPHERE ENTRY

Distribution Statement : APPROVED FOR PUBLIC RELEASE