文献类型：期刊文章

作　　者：王智平[1,2] 王军伟[1] 朱昌盛[1,3] 冯力[1] 肖荣振[1]

机构地区：[1]兰州理工大学甘肃省有色金属新材料省部共建重点实验室,兰州730050 [2]甘肃省有色金属及复合材料工程研究中心,兰州730050 [3]兰州理工大学CAD中心,兰州730050

出　　处：《Transactions of Nonferrous Metals Society of China》

基　　金：Project (10964004) supported by the National Natural Science Foundation of China;Project (096RJZA104) supported by the Natural Science Foundation of Gansu Province, China

年　　份：2011

卷　　号：21

期　　号：3

起止页码：612-617

语　　种：中文

收录情况：AJ、CAS、CSA、CSA-PROQEUST、CSCD、CSCD2011_2012、EBSCO、EI、IC、INSPEC、JST、SCI(收录号：WOS:000290016500026)、SCI-EXPANDED(收录号：WOS:000290016500026)、SCIE、SCOPUS、WOS、ZGKJHX、普通刊

摘　　要：The effect of supercooled melt forced laminar flow at low Reynolds Number on dendritic growth perpendicular to melt flow direction was investigated with the phase-field method by incorporating melt convection and thermal noise under non-isothermal condition. By taking the dendritic growth of high pure succinonitrile （SCN） supercooled melt as an example, side-branching shape difference of melts with flow and without flow was analyzed. Relationships among supercooled melt inflow velocity, deflexion angle of dendritic arm and dendritic tip growth velocity were studied. Results show that the melt inflow velocity has few effects on the dendritic tip growth velocity. A formula of relationship between the velocity of the melt in front of primary dendritic tip and the dendritic growth time was deduced, and the calculated result was in quantitative agreement with the simulation result.

关 键 词：phase-field method  laminar flow  dendritic growth  computer simulation  SOLIDIFICATION flow velocity  

分 类 号：TG111.4]