Accession Number : AD0809344

Title :   HARDENING TECHNOLOGY STUDIES - II. BASE - RADS. A FORTRAN PROGRAM FOR RADIATION ATTENUATION IN THE NEAR WAKE.

Descriptive Note : Computer users manual,

Corporate Author : LOCKHEED MISSILES AND SPACE CO INC SUNNYVALE CA

Personal Author(s) : Woodruff, L. W.

Report Date : 30 SEP 1966

Pagination or Media Count : 46

Abstract : Radiation attenuation in the near turbulent wake for cone vehicles in the presence of an external radiation source is considered. The wake is characterized employing a two-dimensional flow model accounting for the upstream developed boundary layer and mass addition from the base. Radiation from a spherical external source to any position on the base is evaluated considering non-grey absorption in an isothermal constant pressure wake containing the equilibrium species composition associated with sublimation of the base ablator. A computer program, BASE-RADS, for evaluating the coupled wake flow field, attenuated base radiation, and ablator response is described. Application of the program is illustrated for an example encounter situation and base material. (Author)

Descriptors :   (*REENTRY VEHICLES, HARDENING), CONICAL BODIES, NOSE CONES, WAKE, TWO DIMENSIONAL FLOW, TURBULENCE, THERMAL RADIATION, HEAT SHIELDS, ABLATION, BASE FLOW, HEAT TRANSFER, FLOW FIELDS, BLAST, CARBON, PHENOLIC PLASTICS, SHOCK WAVES, HYPERSONIC FLOW, FLOW SEPARATION, COMPUTER PROGRAMS, NUMERICAL ANALYSIS, COMPUTER PROGRAMMING, SUBLIMATION, ATTENUATION.

Subject Categories : Computer Programming and Software
      Guided Missiles
      Fluid Mechanics
      Unmanned Spacecraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE