Universal numerical solver for solid, liquid, and gas: application to laser-induced melting and evaporation

Takashi Yabe

doi:10.1117/12.413739

30 January 2001 Universal numerical solver for solid, liquid, and gas: application to laser-induced melting and evaporation

Takashi Yabe

Author Affiliations +

Proceedings Volume 4157, Laser-Assisted Microtechnology 2000; (2001) https://doi.org/10.1117/12.413739
Event: Laser-Assisted Microtechnology 2000, 2000, St. Petersburg-Pushkin, Russian Federation

Abstract

We have succeeded for the first time to simulate dynamic phase transition from metal to vapor. This success is due to the CIP method that can treat solid, liquid and gas together and can trace a sharp interface with almost one grid. We report here the application to laser-induced evaporation for nanosecond and femtosecond lasers. In both cases, aluminum is evaporated well after the laser beam ended. In the nanosecond laser, evaporation occurs with a large angle to the target normal causing filamentary structure. In the femtosecond laser, evaporation front is formed and shows discontinuous solution that continues over a long time.

Citation Download Citation

Takashi Yabe "Universal numerical solver for solid, liquid, and gas: application to laser-induced melting and evaporation", Proc. SPIE 4157, Laser-Assisted Microtechnology 2000, (30 January 2001); https://doi.org/10.1117/12.413739

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