Accession Number:

AD0270923

Title:

EFFECT OF GEOMETRIC PARAMETERS ON THE STATIC PERFORMANCE OF AN ANNULAR NOZZLE WITH A CONCAVE CENTRAL BASE

Descriptive Note:

Corporate Author:

NATIONAL AERONAUTICS AND SPACE ADMINISTRATION WASHINGTON D C

Report Date:

1962-02-01

Pagination or Media Count:

1.0

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

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE