Numerical simulation based on phase field method is developed to describe polycrystalline solidification for pure material.

基于相场方法对包含多晶粒的纯物质凝固过程进行了数值模拟。

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The dendrite growth of pure metal in undercooled melts was simulated by using phase field model(PFM) and finite difference schemes.

采用相场模型和有限差分方法，模拟了过冷纯金属熔体的枝晶生长，计算区域为二维正方形均匀网格。

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The results show that the existence of cavity phase damping leads to the phenomenon that the quantum states of the field and the system deviate from the initial pure state.

结果表明，由于相位损耗的存在使得光场和系统的量子态偏离初始纯态。

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