ADVANCED CFD MODELING OF DC CASTING OF ALUMINUM ALLOYS

被引：0
|
作者：
Hasan, M. [1 ]
Ragel, K. R. [1 ]
机构：
[1] McGill Univ, Dept Min & Mat Engn, Montreal, PQ H3A 2B2, Canada
来源：
LIGHT METALS 2009 | 2009年
关键词：
DC casting; turbulent flow; modeling; solidification; MACROSEGREGATION;
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
A 3-D CFD model for the simulation of vertical direct chill (DC) slab casting of aluminum alloys is developed. The basis of the model is the 3D time-averaged turbulent transport equations. An in-house developed CID code is used to solve the modeled equations. The model is qualitatively and quantitatively verified by comparing the computed results with a physical water model and a real casting experiment of independent researchers. Each of the comparisons showed a good agreement. A parametric study has been carried out for a DC slab caster of aspect ratio 2.0 fitted with a combo bag for melt distribution from the nozzle. The primary and the secondary cooling zones are simulated by changing the heat transfer coefficient on the slab surface. An in-depth understanding is gained of some behaviors of the melt flow and solidification profile in the steady state operational phase of the commercial DC casting process.
引用
收藏
页码：805 / 810
页数：6
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