Libbrecht K G
Norman Bridge Laboratory of Physics, California Institute of Technology 264-33, Pasadena, California 91125, USA.
Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics. 1999 Aug;60(2 Pt B):1967-74. doi: 10.1103/physreve.60.1967.
We describe a front-tracking Green's function approach to modeling cylindrically symmetric crystal growth. This method is simple to implement, and with little computer power can adequately model a wide range of physical situations. We apply the method to modeling the hexagonal prism growth of ice crystals, which is governed primarily by diffusion along with anisotropic surface kinetic processes. From ice crystal growth observations in air, we derive measurements of the kinetic growth coefficients for the basal and prism faces as a function of temperature, for supersaturations near the water saturation level. These measurements are interpreted in the context of a model for the nucleation and growth of ice, in which the growth dynamics are dominated by the structure of a disordered layer on the ice surfaces.
我们描述了一种用于模拟圆柱对称晶体生长的前沿追踪格林函数方法。该方法易于实现，只需很少的计算机算力就能充分模拟各种物理情况。我们将该方法应用于模拟冰晶的六棱柱生长，其主要由扩散以及各向异性表面动力学过程控制。通过对空气中冰晶生长的观测，我们得出了在接近水饱和水平的过饱和度下，基面和棱柱面的动力学生长系数随温度变化的测量结果。这些测量结果在冰的成核和生长模型的背景下进行了解释，在该模型中，生长动力学由冰表面无序层的结构主导。
