Effect of Anisotropy on Dendritic Growth in Adaptive Phase Field Simulation

摘要：

　　A phase field model in two dimen sions with surface energy anisotropy is used to simu late dendritic solidification of a pure material.The computations were conducted using a robust adap tive mesh finite volume algorithm.The effect of a wide range of anisotropy on dendiritic growth was examined.The growth rate of the dendritic tip ve locity increases nearly linearly with the increase of the anisotropy strength when the anisotropy is lower than 0.1.However, as the anisotropy overreaches the value, the growth velocity increases slightly with further increase of the anisotropy.In addition, iso therms of the dendrite with the high anisotropy can be parabolic due to the cooler growth environment as compared with that of the low anisotropy.

关键词： dendrite growth anisotropy phase field tip velocity model

作者: Chunlei Gan

作者单位: Guangzhou Research Institute of Non-ferrous Metals (Guangdong General Research Institute for Industrial Technology),Guangzhou 510650,China

会议类型: 国际会议

会议名称: The 12th China-Russia Symposium on Advanced Materials and Technologies(第十二届中俄双边新材料新工艺国际会议)

会议地点: 昆明

会议语种:英文

页码: 27-30

在线出版日期: 2013-11-19（万方平台首次上网日期，不代表论文的发表时间）