| Summary: | 碩士 === 國立中山大學 === 機械與機電工程學系研究所 === 107 === This study is to irradiate the injection energy flux of Gaussian distribution on the metal materials, and to discuss the transient thermal behavior of molten state on the metal surface caused by thermal convection.
The model proposed including three-dimensional transient, mass conservation, momentum, energy equation and phase-field function. The study is to discuss the surface deformation and the change of velocity in the molten region,
The result indicates that surface deformation velocity and temperature fields are strongly affected by the thermocapillary force caused by temperature gradient.
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