An experimental study of solid propellant deflagration using high speed motion pictures and postfire residue analysis

Six aluminized propellants were investigated through strand burning in a windowed combustion bomb at 500 psi and 1000 psi. Postfire particle residues were analyzed with a scanning electron microscope and found to have bi-modal size distributions. The mean diameter of the fine particle distribution was approximately 10um in all cases while the mean diameters of the coarse particles was approximately the same size as the initial aluminum cast in the propellant. Measurements taken from the high speed motion pictures included resolution, propellant burning rate, the diameter of burning particles ejected from the surface, and vertical velocity of burning particles. The diameters of the burning particles were approximately 7 to 12 times the diameter of the initial aluminum cast in the propellant. Aluminum size had only small effects on burning rate. The smallest particle that could be accurately resolved with the motion pictures was approximately 60um.

Department dc:contributor.department

Department of Aeronautics

Year dc:date.issued

1980

Author dc:creator

• DiLoreto, Vincent Daniel

Advisor dc:contributor.advisor

• Netzer, David W.

Statement dc:rights

• This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.

Language dc:language.iso

en_US

Handle dc:identifier.uri

https://hdl.handle.net/10945/17588

OAI identifier oai:identifier

oai:calhoun.nps.edu:10945/17588