Quasi-Onedimensional Analysis of Gaseous Free Detonations

抄録

A quasi-onedimensional theory which was developed by Tsuge and Fujiwara for the free detonation propagating through an explosive gas column immersed in an inert gas environment separated from the former by a thin film is applied to the same problem in examining the effect of external pressures.
For the oxyozone free detonation with arbitrarily selected parameters (14 mole per cent ozone, the initial temperature of the entire system 300 K, the initial charge pressure l atm, the charge diameter 1 cm and the environmental inert gas Argon), the double-valuedness as the limit of the propagation velocity which was met in examining the effects of other parameters is obtained. It is found that the Newtonian approximation can be used for moderate values of the inert environmental pressure (0.7∼7 atm), and in the other pressure range (p₀₀<0.7 atm and p₀₀>7 atm) the quasi-onedimensional theory breaks down, though such results have no relationship with the obtained double-valuedness of the propagation velocity and the existence of the limit.