In the present work, a diffuse interface model has been used to numerically investigate the laser-induced cavitation of nano/microbubbles. The mesoscale approach is able to describe the cavitation process in its entirety, starting from the vapor bubble formation due to the focused laser energy deposition, up to its macroscopic motion.In particular, the simulations show a complete and detailed description of the bubble formation and the subsequent breakdown wave emission with a precise estimation of the energy partition between the shockwave radiating in the liquid and the internal energy of the bubble. The scaling of the ratio between the energy stored in the bubble at its maximum radius and the one deposited by the laser is found in agreement with experimental observation on macroscopic bubbles.
Bibliographical noteFunding Information:
The support from the 2020 Sapienza Large Project: Dynamics of Biological and Artificial Lipid Bi-layer Membranes is greatly acknowledged. Concerning computational resources, we acknowledge PRACE for awarding us access to Marconi successor at CINECA, Italy, PRACE 23rd call Project No. 2021240074; DECI 17 SOLID project for resource Navigator based in Portugal at https://www.uc.pt/lca/ from the PRACE aisbl; CINECA award under the ISCRA initiative, for the availability of high-performance computing resources and support (ISCRA-B FHDAS). M.G. was financially supported by Leverhulme Trust Research Project Grant Amuse 2021.
© 2023 Author(s).
- Condensed Matter Physics
- Fluid Flow and Transfer Processes
- Mechanics of Materials
- Computational Mechanics
- Mechanical Engineering