Accession Number : ADA306674

Title :   Parametric Study of a Low-Density Charring Ablator.

Descriptive Note : Technical note,

Corporate Author : NATIONAL AERONAUTICS AND SPACE ADMINISTRATION HAMPTON VA LANGLEY RESEARCH CEN TER

Personal Author(s) : Tompkins, Stephen S. ; Dow, Marvin B.

PDF Url : ADA306674

Report Date : DEC 1966

Pagination or Media Count : 30

Abstract : The results of a parametric study of a representative low-density charring ablator are presented and discussed. The results were obtained from an ablation analysis programed for solution on a high-speed digital computer. The thermal performance of the charring ablator was examined over a range of environmental conditions. The results show that the thermal performance of a charring ablator is strongly influenced by the environmental conditions, particularly stream enthalpy and oxygen concentration. The results also show that the effect of material properties on thermal performance depends upon the stream enthalpy level.

Descriptors :   *ABLATION, *HEAT SHIELDS, *THERMAL INSULATION, *CHARRING, PARAMETRIC ANALYSIS, THERMAL CONDUCTIVITY, LOW DENSITY, CONVECTION(HEAT TRANSFER), PLASTICS, ENTHALPY, THERMAL DEGRADATION, DIGITAL COMPUTERS, SPECIFIC HEAT, PYROLYSIS, ABLATIVE MATERIALS, RADIANT HEATING, HEAT OF COMBUSTION.

Subject Categories : Thermodynamics
      Combustion and Ignition

Distribution Statement : APPROVED FOR PUBLIC RELEASE