The location of the Chapman-Jouguet surface in a multiheaded detonation wave
- 21 June 1976
- journal article
- Published by IOP Publishing in Journal of Physics D: Applied Physics
- Vol. 9 (9) , 1331-1342
- https://doi.org/10.1088/0022-3727/9/9/010
Abstract
Measurements are described of the pressure amplitude of the transverse wave oscillations occurring in detonation waves in oxyhydrogen and oxyacetylene mixtures contained in a circular-section tube. The dependence of the amplitude on initial gas pressure and acoustic model number of the oscillation is established, and this is found to be different from the invariant character observed for the initial portion of the transverse shock which is supported by chemical reaction. An estimate is made of the average density of the acoustic energy of the oscillations in terms of the chemical energy density; close to the front this is found to vary from about 10 to as much as 60%. However, the oscillations are observed to attenuate in a distance of two to four 'cell' lengths downstream of the front.Keywords
This publication has 3 references indexed in Scilit:
- Detonation Structure and Gross PropertiesCombustion Science and Technology, 1971
- On the influence of non-steadiness on the thickness of the detonation waveProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1969
- Two-Dimensional Gaseous Detonations: Velocity DeficitPhysics of Fluids, 1959