摘要
A mathematical model of the centrifugal filling process was established. The calculated results show that the centrifugal field has an important influence on the filling process. Moreover, the process of liquid flow and the location of free surface in sprue were simulated based on the Solution Algorithm-Volume of Fraction (SOLA-VOF) technique. In order to verify the mathematical model and computational results, hydraulic simulation experiment was carried out. The results of experiments and numerical simulation indicate the accuracy of mathematical model. Two kinds of filling methods were investigated and the results show that the bottom filling is better than the top filling that can achieve stable filling and reduce defects.
A mathematical model of the centrifugal filling process was established. The calculated results show that the centrifugal field has an important influence on the filling process. Moreover, the process of liquid flow and the location of free surface in sprue were simulated based on the Solution Algorithm-Volume of Fraction （SOLA-VOF） technique. In order to verify the mathematical model and computational results, hydraulic simulation experiment was carried out. The results of experiments and numerical simulation indicate the accuracy of mathematical model. Two kinds of filling methods were investigated and the results show that the bottom filling is better than the top filling that can achieve stable filling and reduce defects.
出处
《中国有色金属学会会刊：英文版》
EI
CSCD
2006年第5期1035-1040,共6页
Transactions of Nonferrous Metals Society of China
基金
Project(LHK-04025) supported by the Postdoctoral Startup Fund of Heilongjiang Province, China
Project(50434030) supported by the National Natural Science Foundation of China
关键词
钛合金
立式离心铸造
水力模拟
数值模拟
炉顶加料
底部加料
titanium alloy
vertical centrifugal casting
hydraulic simulation
numerical simulation
top filling
bottom filling
