Infrared Wake Radiation.
Abstract
In pure air at elevated temperatures there are a number of source of infrared radiation (e.g., electron scattering). However, unless the temperature is excessively high (> approx. 5000 K), the only significant source consists of the vibrational transitions of the nitric oxide molecule. Thus, for those portions of the wake of a re-entry vehicle where the temperature is not excessive and ablation of the surface material is not significant, the infrared radiation emitted can be identified with the vibrational bands of NO. In this memorandum a method for calculating the spectral intensity of band radiation is described and results of a calculation of the spectral intensity in the fundamental and first overtone bands of NO for the wakes of two different vehicles are given. Other aspects of infrared wake radiation have been discussed elsewhere.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1964
- Accession Number
- ADA101011
Entities
People
- V. R. Stull