Experimental and Numerical Simulation of Laser Driven Shock Waves in Water

In order to test the ability of RADIOSS code to simulate shock waves propagation into water and interaction of these shocks with materials, experiments were carried out using two modes of laser shocks driven into water. It was achieved by direct laser interaction on aluminum plate immerged into water and by laser acceleration of aluminum splashing then in water to generate the shock. Velocity measurements and ombroscopy provide time resolved measurements allowing to characterize the shock induced and its propagation into water in both configurations. The experimental results are compared with corresponding RADIOSS numerical simulations in order to assess the code ability to physically reproduce the observed phenomenon. Further, the layout of these simulations can be extended to the study of high intensity electrical discharges shock generators in water to help in calibrating the shock induced in this complex configuration and their propagation and finally interaction with objects placed into water for applications such as destructions of kidney stones, decontamination of bacteria, grinding of materials, etc.

 

The Author

Dr. Ekaterina Mazanchenko
Post-doctorant
ENSMA-PPRIME