AbstractThe surface phenomena associated with the combustion of highly metallized (e.g. 40–50% boron or magnesium) solid propellants are studied by means of high speed photography (4000 pictures per second), using a windowed high pressure strand burner. The motion pictures were analyzed frame by frame to yield agglomerate size distribution, propellant regression rate, and surface processes. Propellants containing boron additives in the range of 40% (with original sub-micron particles) exhibit irregular combustion with a sort of periodic phenomena, regarding the regression rate, metal agglomeration, ejection of unburnt propellant layers, and other surface processes. Boron particles tend to agglomerate with typical agglomerate size in the range of 30–150 μm. Effect of pressure on the various processes is investigated.
Combustion phenomena of highly metallized solid propellants
Acta Astronautica ; 10 , 5-6 ; 437-441
1983-01-18
5 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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