Analysis Of Laser-Induced Hydrodynamic Phenomena In The Laser Shock Cleaning Process

The hydrodynamics including the optical breakdown and shock wave formation is central to the analysis of the laser shock cleaning (LSC) process. In this work, a 2-dimensional theoretical model is proposed for computation of the hydrodynamic phenomena occurring in the LSC process. It is demonstrated that the results of the numerical computation are in good agreement with experimental observations and reveal the details of the physical mechanisms underlying the LSC process. Furthermore, the hydrodynamics of gas jet injection to sweep the detached particles away is investigated employing the theoretical model.