MEASUREMENT OF DIRECT AND GROUND-REFLECTED THERMAL RADIATION AT ALTITUDE
Abstract
Tests indicated that the theoretical values for the reflected radiation are comparable within 10 percent to the experimental values; the contribution of atmospheric scattered radiation cannot be neglected and in the case where fine particles of matter (like dust) exist in the vicinity of the explosion, the contribution of the scattered radiation increases; random scatter in ground reflected energy measurements under broad band filters prevent the establishment of a ground reflected to direct-energy spectral distribution ratio; and aerodynamic cooling had no appreciable effect on the temperature in exposed skin specimens at indicated airspeeds of 175 knots insofar as reducing the maximum temperature rise of 175 degrees Fahrenheit attained by similar specimens shielded from the airstream.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1957
- Accession Number
- AD0339915
Entities
People
- A. Kviljord