| 相场法在凝固数值模拟中的应用 |
| |
| 引用本文： | 王智平,贾伟建,朱昌盛.相场法在凝固数值模拟中的应用[J].兰州理工大学学报,2005,31(5):25-28. |
| |
| 作者姓名： | 王智平 贾伟建 朱昌盛 |
| |
| 作者单位： | 兰州理工大学甘肃省有色金属新材料国家重点实验室,甘肃兰州730050 |
| |
| 基金项目： | 甘肃省科技攻关项目（2GS044-001-25） |
| |
| 摘 要： | 研究了相场方法在纯物质凝固生长过程中计算模拟的应用．通过选取不同过冷度和各向异性系数进行纯物质镍的技晶生长模拟，最后采用加入非平衡扰动的方式，进行了侧向分技生长的模拟．模拟结果表明，模拟中过冷度和各向异性强度需要耦合考虑；非平衡扰动在模拟中不影响尖端生长速度．
|
| 关 键 词： | 相场方法 过冷度 数值模拟 |
| 文章编号： | 1000-5889(2005)05-0025-04 |
| 收稿时间： | 2005-01-12 |
| 修稿时间： | 2005年1月12日 |
Application of phase-field method to numerical simulation of solidification |
| |
| WANG Zhi-ping, JIA Wei-jian, ZHU Chang-sheng.Application of phase-field method to numerical simulation of solidification[J].Journal of Lanzhou University of Technology,2005,31(5):25-28. |
| |
| Authors: | WANG Zhi-ping JIA Wei-jian ZHU Chang-sheng |
| |
| Institution: | State Key Lab. of Advanced New Non-ferrous Materials, Gansu Province, Lanzhou Univ. of Teeh. , Lanzhou 730050, China |
| |
| Abstract: | The phase-field method is an effective means for simulation of solidification microstructure, being the investigation hot spots at home and abroad by now. The application of phase-field method to numerical simulation of solidification propagation process of pure substance is investigated. The simulation of nickel dendritic propagation is performed by means of selecting various overcooling degrees and anisotropic coefficients. Finally, the propagation of side branched crystalline is simulated by employing unbalanced disturbance mode. The simulation result shows that the overcooling degrees and anisotropic intensity should be considered in couples, and there is no effect of unbalanced disturbance on the speed of tip growth during the simulation process. |
| |
| Keywords: | phase-field method overcooling degree numerical simulation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
