|
|
|
| Discussion about Effective Thermal Conductivity of Molten Steel in Numerical Simulation of Solidification in Continuous Casting |
| |
| |
|
|
|
|
Abstract Considering the variation of flow and heat transfer conditions in the liquid region slab continuous casting strand, the influence of m ratio of effective thermal conductivity to solid thermal conductivity on simulation result was studied with a one-dimensional unsteady solidification heat transfer model. The results show that, under the same secondary cooling condition, the value of m has a great effect on the model calculating result; the same depth of liquid core can be obtained with a constant m or a variable m along with casting direction, but the variations of solidified shell thickness are different from each other, particularly at the exit of the mold. Moreover, if the secondary cooling condition is changed, the depths of liquid core will no longer be equal to each other. Therefore, the taking m as a constant is unreasonable.
|
|
Received: 06 May 2009
|
|
|
|
| [1] |
ZHANG Xiang，XIE Qinghua，NI Peiyuan，LI Ying. Flow behavior of molten steel in SEN during fullnozzle selfswirling flow continuous casting[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2022, 34(7): 629-638. |
| [2] |
CHEN Shuai, LI Jia, LUO Shi-yuan, CAI Tian, ZHANG Zheng-dong, GUO Hong-wei. Design optimization and numerical simulation of blast furnace cooling column[J]. Iron and Steel, 2022, 57(7): 34-42. |
| [3] |
DU Yi-nuo, GUO Lei, YANG Yang, ZHANG Shuai, YU Han-zhang, GUO Zhan-cheng. Numerical simulation of inclusions floating behavior under supergravity field in liquid steel[J]. Iron and Steel, 2022, 57(7): 54-62. |
| [4] |
CHEN Bin, LI Hai-bo, JI Chen-xi, LIU Guo-liang, ZHOU Hai-chen. Influence of casting parameters on level fluctuations and its industrial application[J]. Iron and Steel, 2022, 57(7): 86-94. |
| [5] |
NI Ao1， LI Chengzhi1， ZHANG Wei2， YIN Teng3， LU Zhengdong3， XUE Zhengliang2 . Numerical simulation research on tuyere air supply characteristics of large blast furnace [J]. JOURNAL OF IRON AND STEEL RESEARCH , 2022, 34(5): 411-420. |
| [6] |
JI Junhong，JIANG Yu，DU Hongxian，WANG Shuoshuo . Numerical simulation of influence of impellers′ shape on mixing behavior by KR method desulfurization [J]. JOURNAL OF IRON AND STEEL RESEARCH , 2022, 34(5): 451-460. |
|
|
|
|
2009, Vol. 28 
