Mousumi Das1, Joel P. McDonald2, Tresa M. Pollock3, Steven M. Yalisove3, and Katsuyo Thornton3. (1) Department of Materials Science and Engineering, University of Michigan, 2200 Hayward Ave.,, Ann Arbor, MI 48109, (2) Applied Physics Program, University of Michigan, 2477 Randall Laboratory, Ann Arbor, MI 48109, (3) Materials Science and Engineering, University of Michigan, 2200 Hayward Ave.,, Ann Arbor, MI 48109
The dynamics of femtosecond pulsed laser ablation of the Ni based superalloy were simulated with 2-dimensional hydrodynamic simulation code, FLASH, using initial condition provided by 1-dimensional HYADES simulation run. The simulations yeilded excellent correspondence with the direct observations of the time-resolved pump-probe shadowgraphic images in experiment. The ablation event was accompanied by a jetting phenomenon that was observed in both pump-probe shadowgraphs and in the simulated results. In our poster, results from both direct observation and simulation will be presented.