A solid/liquid/gas three-phase numerical model is constructed to describe the progress of laser drilling by considering two main effects such as material evaporation and molten liquid ejection.The level set method is used to capture the liquid/vapor(L/V) interface and impose physical boundary conditions,making the model feasible to describe the evolution of the interface.By taking factors such as latent heat of vaporization and melt as well as energy lost due to the heat radiation etc.into account,a three-dimensional computer program based on finite volume method is developed for laser drilling, temperature field and the hole surface morphology evolution is simulated and the impact of different laser parameters on drilling are investigated.
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