EFFECT OF GEOMETRIC PARAMETERS ON THE STATIC PERFORMANCE OF AN ANNULAR NOZZLE WITH A CONCAVE CENTRAL BASE
Abstract
An experimental investigation of annular convergent nozzles with concave central bases was conducted. The effects of variation in the ratio of annulus-gap width to base radius and the ratio of annulus-gap width to base depth were examined. Thrust performance comparable to that of a conventional convergent nozzle was obtained for those configurations in which the ratio of annulus-gap width to base radius was largest, that is, approximately 0.25. In general, increasing the base depth by extending the turning lip improved thrust performance and increased pressures on the base. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1962
- Accession Number
- AD0270923
Entities
People
- Albert J. Simonson
- Charles E. Mercer
Organizations
- National Aeronautics and Space Administration