Abstract
The paper is concerned with the experimentally known phenomenon that the detonation velocity of a tubular charge may markedly exceed that of a homogeneous charge of the same explosive. It is shown that the effect may be successfully reproduced using a simple quasi-one-dimensional two-layer model assuming the gas–solid system to be isothermal and the volumetric fraction of the solid phase to be small. In view of a considerable drop of the burned gas pressure/density, compared to the Chapman–Jouguet case, fast detonation may be perceived as a variety of weak (undercompressed) detonation.
Original language | English |
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Pages (from-to) | 573-591 |
Number of pages | 19 |
Journal | Combustion Theory and Modelling |
Volume | 23 |
Issue number | 4 |
DOIs | |
State | Published - 4 Jul 2019 |
Keywords
- cavitated charges
- channel effect
- gas-permeable explosives
- layered charges
- tubular charges
- two-phase detonations
- weak detonations