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