Base drag reduction by external burning
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Authors
Caswell, Gary Joe
Subjects
Advisors
Fuhs, A.E.
Date of Issue
1973-09
Date
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
Supersonic combustion in the inviscid stream has been
shown to reduce the base drag on a projectile. Fast reacting
fuel burned externally in the inviscid, supersonic flow generates
compression waves, which, when properly originated,
impinge on the recirculation bubble aft of the projectile
base and increase the base pressure. A free- jet wind tunnel
was constructed to study external burning where heat addition
was simulated by nozzle contour. Sufficient increase in base
pressure was attained to not only reduce base drag but also
provide thrust. Thus, external burning provides a method
for increasing the performance of projectiles.
Type
Thesis
Description
Series/Report No
Department
Aeronautics
Organization
Naval Postgraduate School
Identifiers
NPS Report Number
Sponsors
Funder
Format
Citation
Distribution Statement
Approved for public release; distribution is unlimited.