| 基于充型过程金属液流动特点的气-液两相流算法模型（英文） |
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| 引用本文： | 牛晓峰,方钊,梁伟,侯华,王红霞.基于充型过程金属液流动特点的气-液两相流算法模型（英文）[J].中国有色金属学会会刊,2014,24(3):790-797. |
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| 作者姓名： | 牛晓峰 方钊 梁伟 侯华 王红霞 |
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| 作者单位： | [1]太原理工大学材料科学与工程学院,太原030024 [2]西安建筑科技大学冶金工程学院,西安710055 [3]中北大学材料科学与工程学院,太原030051 |
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| 基金项目： | Projects(51304145,51301118,51304152)supported by the National Natural Science Foundation of China;Project(2013JQ7016)supported by the Natural Science Foundation of Shannxi Province,China;Project(2013T002)supported by the Science Foundation of Taiyuan University of Technology,China;Project(2013JK0904)supported by Shannxi Provincial Education Department,China |
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| 摘 要： | 针对在铸件充型过程中,金属液表现出不同的流动特点,含有固体颗粒的金属液具有不可压缩非牛顿流的流动特性,而过热金属液具有不可压缩牛顿流的流动特点,采用Projection方法求解气体、过热金属液和含有固体颗粒的金属液的速度场,用Level set方法来追踪气-液界面边界。为了验证计算模型,将模拟结果与实验结果(采用16 mm摄像机记录充型过程)进行比对,从而证明计算模型的正确性。
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| 关 键 词： | 有限差分法 充型过程 Projection方法 Level set方法 两相流 数值模拟 |
| 收稿时间： | 31 May 2013 |
New numerical algorithm of gas-liquid two-phase flow considering characteristics of liquid metal during mold filling |
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| Xiao-feng NIU,Zhao FANG,Wei LIANG,Hua HOU,Hong-xia WANG.New numerical algorithm of gas-liquid two-phase flow considering characteristics of liquid metal during mold filling[J].Transactions of Nonferrous Metals Society of China,2014,24(3):790-797. |
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| Authors: | Xiao-feng NIU Zhao FANG Wei LIANG Hua HOU Hong-xia WANG |
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| Affiliation: | 1. College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China; 2. School of Metallurgical Engineering, Xi＇ an University of Architecture ＆ Technology, Xi＇ an 710055, China; 3. College of Materials Science and Engineering, North University of China, Taiyuan 030051, China) |
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| Abstract: | A new program is developed for gas-liquid two-phase mold filling simulation in casting. The gas fluid, the superheated liquid metal and the liquid metal containing solid grains are assumed to be governed by Navier-Stokes equations and solved through Projection method. The Level set method is used to track the gas-liquid interface boundary. In order to demonstrate the correctness of this new program for simulation of gas-liquid two-phase mold filling in casting, a benchmark filling experiment is simulated （this benchmark test is designed by XU and the filling process is recorded by a 16-mm film camera）. The simulated results agree very well with the experimental results, showing that this new program can be used to properly predicate the gas-liquid two-phase mold filling simulation in casting. |
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| Keywords: | finite difference method mold filling process Projection method Level set method two-phase flow numericalsimulation |
| 本文献已被 CNKI 维普 ScienceDirect 等数据库收录！ |
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