ISIJ International
Online ISSN : 1347-5460
Print ISSN : 0915-1559
ISSN-L : 0915-1559
Regular Article
Mechanism Analysis of Free-Surface Vortex Formation during Steel Teeming
Hong-Xia LiQiang WangHong LeiJia-Wei JiangZhan-Cheng GuoJi-Cheng He
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2014 Volume 54 Issue 7 Pages 1592-1600

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Abstract

To develop an effective technology to prevent vortex forming in ladles, the mechanism underlying vortex formation during steel teeming must be studied. For simulations using the numerical simulation software Fluent, a geometric model of the ladle was generated, and initially water teeming in the ladle was simulated for different initial tangential velocities. The results obtained help to verify the validity of the numerical computations. Similar simulation conducted for steel showed that the tangential velocity increases from the liquid level to the bottom of the ladle, and the flow at the bottom is related to vortex formation. The inference is that vortex formation begins from the ladle bottom. Causes for vortex formation during teeming are discussed to help lay a theoretical basis for ladle design in preventing vortex formation during steel teeming.

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© 2014 by The Iron and Steel Institute of Japan
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