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K. Schmidmayer is presenting investigations of shock-induced cavitation within a droplet which involves multiphase mechanisms. Within the context of heterogeneous nucleation, he introduces a thermodynamically well-posed multiphase numerical model accounting for phase compression and expansion, which relies on a finite pressure-relaxation rate formulation. He elucidates the critical Mach number from which cavitation is likely to occur and he provides a phenomenological description.

K. Schmidmayer is presenting interactions between waves and interfaces in the diffuse interface approach. He highlights the issue coming from the appearance of a wave-trapping phenomenon. Then he presents a thermodynamically-consistent pressure-disequilibrium model with finite pressure-relaxation rate to overcome the difficulties inherent in the computation of these interactions.