Wind Tunnel Experiments of the Effect of Near-Wake Combustion on the Base Drag of Supersonic Projectiles
Abstract
A series of fumers based on magnesium/strontium peroxide was tested at the Naval Surface Weapon Center's Hypersonic Tunnel to see the effect of varying the parameters that control the rate of combustion of pyrotechnics. The parameters that were varied included spin rate, fuel content, fuel particle size, the oxidizer, and the addition of burning rate additivies (calcium resinate, polyvinylchloride, oxamide, and gelatin). The base drag reductions measured for all the mixes could be approximately correlated by a single expression relating base drag reduction to the mass burning rate of the fumer mix. The base drag reduction estimated for propellant combustion gases is similar to the base drag reductions achieved with pyrotechnics. This raises the possibility of 'invisible' fumer mixes.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1976
- Accession Number
- ADB009982
Entities
People
- Dennis J. Mancinelli
- Frank P. Baltakis
- J. Richard Ward
- Theresa A. Elmendorf
Organizations
- Ballistic Research Laboratory