Phase Field 法を用いた固体面上における氷の結晶成長シミュレーション

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  • Simulation of Ice Crystal Growth on Solid Surface Using Phase Field Method
  • Phase Fieldホウ オ モチイタ コタイメン ジョウ ニ オケル コオリ ノ ケッショウ セイチョウ シミュレーション

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Phase field method is known to be very powerful in describing the complex pattern formation of the interface in non-equilibrium state. In this study, ice crystal growth on a solid surface was simulated using phase field method. After an ice nucleus was put on the solid surface in supercooling condition, the ice crystal grew up along the solid surface. Then, growth velocity of the ice crystal was measured, varying the growth direction and the thermophysical properties of the solid surface. As the results, it was found that the ice crystal growth velocity depends on the growth direction, and is faster when the difference between the priority growth angle and the normal angle of the solid-liqid interface is small. Moreover, it was found that the growth velocity is affected by on the thermal effusivity of the solid plate significantly.

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