Uniformity evaluation and optimization of fluid flow characteristics in a seven-strand tundish
Uniformity evaluation and optimization of fluid flow characteristics in a seven-strand tundish
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七流中间包流体流动特性均匀性评价与优化
DOI：
10.1007/s12613-016-1220-5
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发表时间：
2016-01
影响因子：
4.8
通讯作者：
Li Rui
中科院分区：
文献类型：
--
作者：
Wang Min;Zhang Chao-jie;Li Rui
使用实验 1:2.5 水力模型和 1:1 几何模型数值模拟，研究了流量控制装置 (FCD) 对七流对称梯形中间包流量特性均匀性的影响。定义变异系数（CV）来评估七流中间包的流动均匀性。在评估实验结果的基础上，提出了一种优化的FCD配置。结果表明，湍流抑制器（TI）和U型坝对于提高七流中间包内流体流动的均匀性至关重要。另外，在第二、三线之间配置高度为200毫米、第三、四线之间高度为300毫米的倾斜T型坝，可以最大限度地减少死区比例。优化FCD配置后，变异系数降低到平均值的20%以下，死区比例平均仅为14.6%；另外，流间温度波动可控制在0.6K以内。综上所述，七流中间包内流量和温度的均匀性大大提高。
The effect of flow control devices (FCDs) on the uniformity of flow characteristics in a seven-strand symmetrical trapezoidal tundish was studied using both an experimental 1:2.5 hydraulic model and a numerical simulation of a 1:1 geometric model. The variation coefficient (CV) was defined to evaluate the flow uniformity of the seven-strand tundish. An optimized FCD configuration was proposed on the basis of the evaluation of experimental results. It is concluded that a turbulence inhibitor (TI) and U-type dam are essential to improve the uniformity of fluid flow in the seven-strand tundish. In addition, the configuration of inclination T-type dams with a height of 200 mm between the second and third strands and with a height of 300 mm between the third and fourth strands can minimize the proportion of dead zone. After optimizing the configuration of FCDs, the variation coefficient reduces below 20% of the mean value, and the average proportion of dead zone is just 14.6%; in addition, the temperature fluctuation between the strands could be controlled within 0.6 K. In summary, the uniformity of flow and temperature in the seven-strand tundish is greatly improved.
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DOI：
10.1007/s12613-011-0436-7
发表时间：
2011-05
期刊：
International Journal of Minerals, Metallurgy, and Materials
影响因子：
--
作者：
Ning Ding;Y. Bao;Qi-song Sun;Li-feng Wang
通讯作者：
Ning Ding;Y. Bao;Qi-song Sun;Li-feng Wang
影响因子：
1.8
作者：
P. Jha;S. Dash;Sanjay Kumar
通讯作者：
P. Jha;S. Dash;Sanjay Kumar
超厚板坯连铸中间包堰及气幕水力学及数学模拟
DOI：
10.1007/s11663-013-9941-6
发表时间：
2014-04-01
影响因子：
3
作者：
Chen, Dengfu;Xie, Xin;Liao, Qi
通讯作者：
Liao, Qi
影响因子：
0.6
作者：
J. Jowsa;A. Cwudziński
通讯作者：
J. Jowsa;A. Cwudziński
影响因子：
0.6
作者：
T. Merder
通讯作者：
T. Merder