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Effect of swirling flow tundish submerged entry nozzle outlet design on multiphase flow and heat transfer in mould
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Applied Process Metallurgy.ORCID iD: 0000-0002-4081-7766
Northeastern Univ, Sch Met, Key Lab Ecol Met Multimet Intergrown Ores, Educ Minist, Shenyang 110819, Liaoning, Peoples R China.;Osaka Univ, Grad Sch Engn, Dept Mat & Mfg Sci, 2-1 Yamadaoka, Suita, Osaka 5650871, Japan..
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering.ORCID iD: 0000-0003-4384-7984
Northeastern Univ, Sch Met, Key Lab Ecol Met Multimet Intergrown Ores, Educ Minist, Shenyang 110819, Liaoning, Peoples R China..
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2019 (English)In: Ironmaking & steelmaking, ISSN 0301-9233, E-ISSN 1743-2812Article in journal (Refereed) Published
Abstract [en]

Effect of a swirling flow SEN (submerged entry nozzle) outlet design on the multiphase flow and heat transfer in a mould was investigated by using numerical simulation. It was found that different SEN outlet designs could form different flow patterns and temperature distributions on the upper of the mould. The enlarged outlet SEN design had an effect to decrease the horizontal velocity of liquid steel flowing out the SEN outlet, reducing the steel flow velocity towards the solidification front. Although a higher velocity was found near the slag/steel interface with the enlarged outlet SEN, but the turbulent kinetic energy was lower. The reason was that less circulation flows were formed in the region of the mould top. The weak horizontal flow towards the solidification front with the enlarged outlet SEN induced lower wall shear stresses, at the same time it also formed a lower temperature distribution near the solidified shell.

Place, publisher, year, edition, pages
TAYLOR & FRANCIS LTD , 2019.
Keywords [en]
Swirling flow tundish, SEN outlet design, multiphase flow, heat transfer, continuous casting mould, steel, numerical simulation, steel, slag behavior
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:kth:diva-255180DOI: 10.1080/03019233.2019.1630215ISI: 000472437100001Scopus ID: 2-s2.0-85068138836OAI: oai:DiVA.org:kth-255180DiVA, id: diva2:1348438
Note

QC 20190904

Available from: 2019-09-04 Created: 2019-09-04 Last updated: 2019-09-04Bibliographically approved

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Bai, HaitongErsson, MikaelJönsson, Pär

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