基于VRML的多晶体晶粒三维形貌仿真及可视化研究

Study on 3D Simulation and Visualization of Polycrystalline Grain's Shape Based on VRML

根据模拟微观组织的Rappaz连续形核模型和晶粒的细胞生长法,对多晶体凝固过程中晶粒组织进行了三维建模。采用面向对象的计算机仿真技术,完成了晶粒的三维形貌仿真;并将由VC++6.0中生成的仿真结果自动转换为VRML2.0的场景文件;在浏览器中实现了三维仿真结果可视化。在PC机上实验表明,所构建的仿真模型较好地模拟了多晶体的三维形貌;从而为多晶体材料微观组织的研究提供一种三维数字化模型。

D modeling of microstructures of polycrystalline grains in the process of solidification is implemented based on Rappaz Model and the method of Cellular Growth of the grain. By using object-oriented technique, 3D simulation of grain microstructure is finished. Then, the simulation results created in VC++6.0 are converted into the scene files of VRML2.0 automatically. In the browser, finally, the interactive 3D-visulization is realized. The experimental results on personal computer demonstrate that these models built above can effectively simulate polycrystalline grains?shapes. Therefore, it provided a 3D digital model for further studying microstructures of polycrystalline materials.