Effect of Immersion Depth of a Swirling Flow Tundish SEN on Multiphase Flow and Heat Transfer in Mold
The effect of the immersion depth of a new swirling flow tundish SEN (Submerged Entry Nozzle) on the multiphase flow and heat transfer in a mold was studied using numerical simulation. The RSM (Reynolds Stress Model) and the VOF (Volume of Fluid) model were used to solve the steel and slag flow phen...
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doaj-f6b482cafc9e4061ad3810a092e391792020-11-24T21:47:28ZengMDPI AGMetals2075-47012018-11-0181191010.3390/met8110910met8110910Effect of Immersion Depth of a Swirling Flow Tundish SEN on Multiphase Flow and Heat Transfer in MoldPeiyuan Ni0Mikael Ersson1Lage T. I. Jonsson2Ting-An Zhang3Pär Göran Jönsson4Key Laboratory of Ecological Metallurgy of Multi-Metal Intergrown Ores of Education Ministry, School of Metallurgy, Northeastern University, Shenyang 110819, ChinaDepartment of Materials Science and Engineering, KTH Royal Institute of Technology, SE-100 44 Stockholm, SwedenDepartment of Materials Science and Engineering, KTH Royal Institute of Technology, SE-100 44 Stockholm, SwedenKey Laboratory of Ecological Metallurgy of Multi-Metal Intergrown Ores of Education Ministry, School of Metallurgy, Northeastern University, Shenyang 110819, ChinaDepartment of Materials Science and Engineering, KTH Royal Institute of Technology, SE-100 44 Stockholm, SwedenThe effect of the immersion depth of a new swirling flow tundish SEN (Submerged Entry Nozzle) on the multiphase flow and heat transfer in a mold was studied using numerical simulation. The RSM (Reynolds Stress Model) and the VOF (Volume of Fluid) model were used to solve the steel and slag flow phenomena. The results show that the SEN immersion depth can significantly influence the steel flow near the meniscus. Specifically, an increase of the SEN immersion depth decreases the interfacial velocity, and this reduces the risk for the slag entrainment. The calculated Weber Number decreases from 0.8 to 0.2 when the SEN immersion depth increases from 15 cm to 25 cm. With a large SEN immersion depth, the steel flow velocity near the solidification front, which is below the mold level of SEN outlet, was increased. The temperature distribution has a similar distribution characteristic for different SEN immersion depths. The high temperature region is located near the solidification front. Temperature near the meniscus was slightly decreased when the SEN immersion depth was increased, due to an increased steel moving distance from the SEN outlet to the meniscus.https://www.mdpi.com/2075-4701/8/11/910swirling flow tundishSEN immersion depthmultiphase flowheat transfercontinuous casting mold |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Peiyuan Ni Mikael Ersson Lage T. I. Jonsson Ting-An Zhang Pär Göran Jönsson |
spellingShingle |
Peiyuan Ni Mikael Ersson Lage T. I. Jonsson Ting-An Zhang Pär Göran Jönsson Effect of Immersion Depth of a Swirling Flow Tundish SEN on Multiphase Flow and Heat Transfer in Mold Metals swirling flow tundish SEN immersion depth multiphase flow heat transfer continuous casting mold |
author_facet |
Peiyuan Ni Mikael Ersson Lage T. I. Jonsson Ting-An Zhang Pär Göran Jönsson |
author_sort |
Peiyuan Ni |
title |
Effect of Immersion Depth of a Swirling Flow Tundish SEN on Multiphase Flow and Heat Transfer in Mold |
title_short |
Effect of Immersion Depth of a Swirling Flow Tundish SEN on Multiphase Flow and Heat Transfer in Mold |
title_full |
Effect of Immersion Depth of a Swirling Flow Tundish SEN on Multiphase Flow and Heat Transfer in Mold |
title_fullStr |
Effect of Immersion Depth of a Swirling Flow Tundish SEN on Multiphase Flow and Heat Transfer in Mold |
title_full_unstemmed |
Effect of Immersion Depth of a Swirling Flow Tundish SEN on Multiphase Flow and Heat Transfer in Mold |
title_sort |
effect of immersion depth of a swirling flow tundish sen on multiphase flow and heat transfer in mold |
publisher |
MDPI AG |
series |
Metals |
issn |
2075-4701 |
publishDate |
2018-11-01 |
description |
The effect of the immersion depth of a new swirling flow tundish SEN (Submerged Entry Nozzle) on the multiphase flow and heat transfer in a mold was studied using numerical simulation. The RSM (Reynolds Stress Model) and the VOF (Volume of Fluid) model were used to solve the steel and slag flow phenomena. The results show that the SEN immersion depth can significantly influence the steel flow near the meniscus. Specifically, an increase of the SEN immersion depth decreases the interfacial velocity, and this reduces the risk for the slag entrainment. The calculated Weber Number decreases from 0.8 to 0.2 when the SEN immersion depth increases from 15 cm to 25 cm. With a large SEN immersion depth, the steel flow velocity near the solidification front, which is below the mold level of SEN outlet, was increased. The temperature distribution has a similar distribution characteristic for different SEN immersion depths. The high temperature region is located near the solidification front. Temperature near the meniscus was slightly decreased when the SEN immersion depth was increased, due to an increased steel moving distance from the SEN outlet to the meniscus. |
topic |
swirling flow tundish SEN immersion depth multiphase flow heat transfer continuous casting mold |
url |
https://www.mdpi.com/2075-4701/8/11/910 |
work_keys_str_mv |
AT peiyuanni effectofimmersiondepthofaswirlingflowtundishsenonmultiphaseflowandheattransferinmold AT mikaelersson effectofimmersiondepthofaswirlingflowtundishsenonmultiphaseflowandheattransferinmold AT lagetijonsson effectofimmersiondepthofaswirlingflowtundishsenonmultiphaseflowandheattransferinmold AT tinganzhang effectofimmersiondepthofaswirlingflowtundishsenonmultiphaseflowandheattransferinmold AT pargoranjonsson effectofimmersiondepthofaswirlingflowtundishsenonmultiphaseflowandheattransferinmold |
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