Abstract:

The results of numerical investigations of different effects arising in bubbly liquid due to wave interactions are presented. The influence of the gas content on the parameters and the structure of shock waves and of chemical reactions in the gas phase will be considered. The problem is solved within the framework of the two-phase mathematical model including the kinetic equations for the description of the medium-state dynamics, thermoexchange as well as of bimolecular reaction kinetics. The purpose is to estimate the amplification level of the wave intensity as the result of such kinds of interactions. The wave amplitudes in a passive bubbly media turned out to be amplified by one order of magnitude in the collision plane and their amplification depends on the bubble concentration k[inf 0] as p[inf max]=2+24.5(centered dot)k[inf 0][sup 1/4]. The possibilities of simulating the hot-spot mechanism of liquid explosive detonation ignition and the mechanism of the large-scale explosions of containers filled with a fuel by bubbly detonation wave interactions are discussed. [Work supported by RFFR, Grant 96-02-19369.]