K. Schmidmayer is presenting investigations of the dynamics of cavitation bubbles around kidney stones during extracorporeal shock wave lithotripsy. Through a combination of in-situ experiments and diffuse-interface-method simulations, a peculiar interaction between stone-attached and distant bubbles is observed, resulting in a notable pressure increase at the distant-bubble jet-impact site.

A new release, ECOGEN_v4.0, is available on GitHub. More information here.

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.