Possibility of the detonation of gas mixtures in conical tubes

Summary

• 1. It is shown that in any gaseous explosive mixture capable of being detonated in a tube of constant section, it is possible also to initiate the stationary propagation of a spherical detonation wave.

• 2. For the initiation of spherical detonation, the critical radius that the spherical shock wave must have will be the greater, the longer the period of induction for self-ignition of the mixture under the conditions of its compression by the spherical shock wave.

• 3. The relationship derived theoretically between the weakening of the shock wave, on the one hand, and the characteritics of the investigated mixture with respect to reaction kinetics, the geometric dimensions of the wave, and the parameters of the apparatus, on the other, is qualitatively in close accord with experiment.