Accession Number : AD0427007

Title :   THE INFLUENCE OF A COMPRESSIBLE BOUNDARY ON THE PROPAGATION OF GASEOUS DETONATIONS.

Descriptive Note : Technical rept.,

Corporate Author : MICHIGAN UNIV ANN ARBOR COLL OF ENGINEERING

Personal Author(s) : Dabora,E. K.

Report Date : DEC 1963

Pagination or Media Count : 140

Abstract : Theoretical analysis shows that a detonation wave in a gaseous explosive bounded by an inert gaseous medium propagates at a lower velocity than it would have if the explosive were inside a tube with a solid wall. The velocity decrement is found to be dependent primarily on the ratio of the initial densities of the explosive and the inert gases, the reaction length of the explosive and the extent of the explosive normal to the interface. An extension of composition limit criteria shows that there is a limit to the velocity decrement beyond which the detonation is expected to quench and therefore deteriorate into a shock. Extensive experimental results on H2-O2 mixtures bounded by nitrogen and some results on stoichiometric CH4-O2 bounded by different gases show a general agreement with theory. (Author)

Descriptors :   (*GASES, DETONATION WAVES), (*DETONATION WAVES, GASES), SHOCK WAVES, EXPLOSION EFFECTS, CONTROLLED ATMOSPHERES, RARE GASES, SHOCK TUBES, STABILITY, VELOCITY, PHOTOGRAPHIC ANALYSIS

Distribution Statement : APPROVED FOR PUBLIC RELEASE