INITIATION OF SPHERICAL DETONATION IN HYDROCARBON-AIR MIXTURES

被引:43
作者
BULL, DC [1 ]
ELSWORTH, JE [1 ]
HOOPER, G [1 ]
机构
[1] PERME,WALTHAM ABBEY,ESSEX,ENGLAND
关键词
D O I
10.1016/0094-5765(78)90005-X
中图分类号
V [航空、航天];
学科分类号
08 ; 0825 ;
摘要
Spherical detonations have been initiated by solid explosive (Tetryl) charges in well-mixed stoichiometric air mixtures with each of the hydrocarbons, ethane, propane, n-butane, isobutane, and ethylene at atmospheric pressure. In a few experiments close to the limits of detonability, velocity and blast pressure/time records indicated that the propagating wave system is sometimes irregular. The irregularity that occurs just after initiation is characterized by a reaction front velocity very much lower than the constant detonation velocity, but subsequently attaining the latter by an acceleration process. These observations indicate the existence of a dissociated phase in which shock and reaction fronts may no longer be coupled.
引用
收藏
页码:997 / 1008
页数:12
相关论文
共 23 条