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

来源：

ACTA ASTRONAUTICA | 1978年 / 5卷 / 11-1期

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

页码：997 / 1008

页数：12

共 23 条

[1]

BACH GG, 1971, 13TH S INT COMB, P1097

[2] DETONATION LIMITS OF UNCONFINED HYDROCARBON-AIR MIXTURES [J].