Propagation of a reactive wave in a bubbly liquid

Experiments have been performed to elucidate on the structure of self-sustained reactive waves (SSRW) in bubbly liquids. The initial bubble dimension does not affect the wave velocity, but it changes its structure. This seems to suggest that although the wave structure is dependent on bubble dynamics, its velocity is governed by averaged fluid properties. The existence or not, of a fundamental length scale (such as critical tube diameter) could not be resolved in the present study. As such, these waves have nothing in common with classical CJ detonations in a reactive gas, whose speed is driven by equilibrium thermodynamics only. The SSRW is governed by the nonequilibrium dynamics of bubbly liquids.