Simulation of pulsed-laser-induced explosive boiling |
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Authors: | S N Andreev S V Orlov A A Samokhin |
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Institution: | (1) Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow, 119991, Russia |
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Abstract: | Bulk evaporation process in absorbing condensed matter irradiated with laser pulses was studied using the one-dimensional
thermal model with additional interfaces between different phases. Within this approach, it was shown that the repeated explosive
boiling mode can be achieved using nanosecond laser pulses, if the nucleation time is shorter than 0.1 ns. This mode can be
observed if the surface pressure is lower than the critical pressure P
c of the liquid-vapor phase transition. The dependences of these processes on the laser pulse intensity and duration, as well
as on evaporation kinetics were studied. Explosive boiling and spallation of a transparent liquid film on a pulse-heated absorbing
target, as well as the photoacoustic signal in the target before the explosion, were considered. |
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Keywords: | |
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