Jetting mechanisms in cavitation bubbles play a crucial role in the destructive forces of cavitation. Depending on the application, these forces can have desirable effects like in medical treatments or catastrophic effects like in the erosion of ship propellers. Still today, thorough understanding of all details in complex bubble collapse scenarios is lacking. Hence, in this work, we numerically investigate the jetting mechanisms for air bubble pairs in water following a recent experimental setup. We apply a finite-volume approach with fifth-order low-dissipation shock-capturing weighted essentially non-oscillatory reconstruction. The interface interaction is described by a conservative sharp-interface level-set method. For time integration, a third-order total-variation-diminishing Runge–Kutta scheme is employed. Complementing experimental observations, our simulations reveal the presence of dominating gas jets and new types of jetting mechanisms.     «

Jetting mechanisms in cavitation bubbles play a crucial role in the destructive forces of cavitation. Depending on the application, these forces can have desirable effects like in medical treatments or catastrophic effects like in the erosion of ship propellers. Still today, thorough understanding of all details in complex bubble collapse scenarios is lacking. Hence, in this work, we numerically investigate the jetting mechanisms for air bubble pairs in water following a recent experimental setu...     »

Funding text 1 The authors have received funding from the European Research Council (ERC) under the European Union's Horizon 2020 Research and Innovation Programme (Grant Agreement No. 667483). The authors gratefully acknowledge the Gauss Centre for Supercomputing e.V. for funding this project by providing computing time on the CoolMUC-2 Linux-Cluster at Leibniz Supercomputing Centre. Funding text 2 The authors have received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 Research and Innovation Programme (Grant Agreement No. 667483). The authors gratefully acknowledge the Gauss Centre for Supercomputing e.V. for funding this project by providing computing time on the CoolMUC-2 Linux-Cluster at Leibniz Supercomputing Centre.     «

Funding text 1 The authors have received funding from the European Research Council (ERC) under the European Union's Horizon 2020 Research and Innovation Programme (Grant Agreement No. 667483). The authors gratefully acknowledge the Gauss Centre for Supercomputing e.V. for funding this project by providing computing time on the CoolMUC-2 Linux-Cluster at Leibniz Supercomputing Centre. Funding text 2 The authors have received funding from the European Research Council (ERC) under the European...     »