## OpenGL计算机模拟材料二维扩散及其运动及C++程序

Computer simulation of two-dimensional diffusion and movement of materials
Abstract In solid materials，diffusion is the only way to achieve transmission of matter.Many phenomena in the process of manufacture or use of materials and some properties have correlation with diffusion，such as solid state phase transition,solidification etc.Thus,explanation for the macroscopical law and microcosmic mechanism of diffusion are very important. So a further investigation of diffusion has both theoretical and practical significance. In this paper, the application of molecular dynamics computer simulation method to study material atomic two-dimensional diffusion and movement, carried out by the C++ programming, OpenGL software for image data, through the Excel software to deal with the experimental data and the atomic trajectories, final theory to analyze the diffusion of atoms in heating process. 源￥自%六^^维*论-文+网=www.lwfree.cn
KeyWords: Molecular dynamics ; computer simulation ; the heat treatment

1 引言    1
1.1 扩散    1
1.2 扩散的微观机制    2
1.3 影响扩散的因素    3
1.4 扩散定律    3
1.4.1 菲克第一定律    3
1.4.2  菲克第二定律    3
1.4.3  原子跳跃与扩散距离    3
1.5 扩散的热力学分析    4
1.6 分子动力学    4
1.7 研究意义与任务    6
1.7.1研究意义    6
1.7.2 实验任务    6
1.7.3 段性困难    6
2 理论基础    7
2.1 计算机模拟    7
2.2 计算方法    7
2.3 C语言    8
2.4 OpenGL    10
2.5 Excel数据处理    11
2.6 实验思路    11
3 计算机模拟二维扩散    13
3.1 调整计算机编程时的程序参数    13
3.2 环形扩散引起的均匀熔融    15
4 实验结论及分析    19

1    引言

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