Computational investigation of the splashing phenomenon induced by the impingement of multiple supersonic jets onto a molten slag-metal bath

Mingming Li, Qiang Li, Shibo Kuang, Zongshu Zou

Research output: Contribution to journalArticleResearchpeer-review

Abstract

This paper presents a study of the splashing phenomenon caused by the impingement of supersonic jets onto the slag−metal molten bath under real oxygen steelmaking conditions using numerical simulations. The validity of the mathematical model has been verified through different applications. The time-sequenced occurrence process and generation mechanism of splashing are revealed, and the splashing rate is determined with respect to lance height and operation pressure by combining the multifluid volume of fluid model with the blowing number theory. The results show that the generation of splashing is a result of the collective effects of the direct ejection of individual droplets and the tearing of “splash sheets” or “large tears”. It is also found that the splashing process is unstable and normally irregular during the blowing, and the splashing is enhanced in terms of the tearing of splash sheets or large tears with declining lance height or increasing operation pressure.
Original languageEnglish
Pages (from-to)3630 - 3640
Number of pages11
JournalIndustrial and Engineering Chemistry Research
Volume55
Issue number12
DOIs
Publication statusPublished - 2016

Cite this

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title = "Computational investigation of the splashing phenomenon induced by the impingement of multiple supersonic jets onto a molten slag-metal bath",
abstract = "This paper presents a study of the splashing phenomenon caused by the impingement of supersonic jets onto the slag−metal molten bath under real oxygen steelmaking conditions using numerical simulations. The validity of the mathematical model has been verified through different applications. The time-sequenced occurrence process and generation mechanism of splashing are revealed, and the splashing rate is determined with respect to lance height and operation pressure by combining the multifluid volume of fluid model with the blowing number theory. The results show that the generation of splashing is a result of the collective effects of the direct ejection of individual droplets and the tearing of “splash sheets” or “large tears”. It is also found that the splashing process is unstable and normally irregular during the blowing, and the splashing is enhanced in terms of the tearing of splash sheets or large tears with declining lance height or increasing operation pressure.",
author = "Mingming Li and Qiang Li and Shibo Kuang and Zongshu Zou",
year = "2016",
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Computational investigation of the splashing phenomenon induced by the impingement of multiple supersonic jets onto a molten slag-metal bath. / Li, Mingming; Li, Qiang; Kuang, Shibo; Zou, Zongshu.

In: Industrial and Engineering Chemistry Research, Vol. 55, No. 12, 2016, p. 3630 - 3640.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Computational investigation of the splashing phenomenon induced by the impingement of multiple supersonic jets onto a molten slag-metal bath

AU - Li, Mingming

AU - Li, Qiang

AU - Kuang, Shibo

AU - Zou, Zongshu

PY - 2016

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AB - This paper presents a study of the splashing phenomenon caused by the impingement of supersonic jets onto the slag−metal molten bath under real oxygen steelmaking conditions using numerical simulations. The validity of the mathematical model has been verified through different applications. The time-sequenced occurrence process and generation mechanism of splashing are revealed, and the splashing rate is determined with respect to lance height and operation pressure by combining the multifluid volume of fluid model with the blowing number theory. The results show that the generation of splashing is a result of the collective effects of the direct ejection of individual droplets and the tearing of “splash sheets” or “large tears”. It is also found that the splashing process is unstable and normally irregular during the blowing, and the splashing is enhanced in terms of the tearing of splash sheets or large tears with declining lance height or increasing operation pressure.

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