Mathematical Modeling of Laser Ablation in Liquids with Applications to Laser Ultrasonics
The use of laser ablation as a means of generating ultrasonic waves in liquid metals is studied in this paper. A mathematical model for predicting the onset of ablation is developed, as is a model of the ablation process based on steady state, one-dimensional gas dynamics in which the vapor phase is treated as an ideal gas. The results of this model are then used in a quasi-two-dimensional model of laser ablation that accounts for the spatial distribution of intensity in the laser beam. Model predictions are compared with experiments conducted on liquid mercury and excellent agreement is obtained. Based on these results, a simplified model is developed that shows excellent agreement with both the theory and the experiments.
- Research Organization:
- Idaho National Lab. (INL), Idaho Falls, ID (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- DE-AC07-99ID-13727
- OSTI ID:
- 912104
- Report Number(s):
- INEEL/JOU-00-00294; ULTRA3; TRN: US200801%%541
- Journal Information:
- Ultrasonics, Vol. 40, Issue 10; ISSN 0041-624X
- Country of Publication:
- United States
- Language:
- English
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