A Survey of Thermal Radiation Studies of Ablating Bodies in the Ballistic Range.
Abstract
Ames Research Center has studied the radiative properties of the boundary layer and near wake of ablating bodies flying in ballistic ranges. The ablating materials investigated include polycarbonate, General Electric 12k resin, polyethylene, polyformaldehyde, Teflon, and cellulose nitrate. Both absolute radiometric and spectrographic data were obtained. The observed absolute amount of radiation varied greatly for the various materials. The chemical species responsible for the radiation in the spectral range from 0.2 to 1.1 microns were CN, C2, NH, H, and solid carbon microparticles, or soot. The results of the tests indicate a strong correlation between the radiating species present and the carbon-oxygen ratio of the ablating material.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1967
- Accession Number
- ADA307041
Entities
People
- William A. Page
Organizations
- National Aeronautics and Space Administration