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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 11    No. 5    October 2001

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Simulation and prediction of
flow patterns in mold filling
XUE Xiang(薛  祥)1, ZHANG Yue-bing(张跃冰)1, P. N. Hansen2

1. School of Materials Science and Engineering,
Harbin Institute of Technology,Harbin 150001, P.R. China;
2. Institute of Manufacturing Engineering,
Technical University of Denmark,DK-2800, Denmark

Abstract: The potential of a 3D FDM (Finite Difference Method) computer code was presented, in prediction of flow patterns by modeling the mold filling phenomena through different gating systems. In this code, improvements and modifications were made on the original SOLA-VOF and Donor-Acceptor algorithms. A more accurate solution procedure for handling free surfaces is developed in order to describe the flows through complicated gating designs. A block casting of 200?mm×200?mm×50?mm with two different gating designs was chosen as the verifying problem. Water analog studies are carried out on these two gating designs. The comparison indicates that computer simulation could be a powerful tool in shaping gating systems.

 

Key words:  mold filling; free surface; gating design

ISSN 1672-7029
CN 43-1423/U

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