Mathematical Model for Growth and Removal of Inclusion in a Multi-tuyere Ladle during Gas-stirring

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概要

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• A three-dimensional mathematical model has been developed to predict the growth and removal of inclusions during gas stirring in a multi-tuyere ladle. In the model, the efficiency of inclusions removal have been investigated under three different collision mechanisms of Brownian collision, turbulent collision and Stokes collision. Importance of the three approaches of wall adhesion, Stokes flotation and bubbles adhesion to remove inclusions has been analyzed. The results indicated that inclusions growth resulting from turbulent collision is most important and that effect of Stokes collision is remarkable as size of inclusions and difference in size of two particles increase, while inclusion growth resulting from Brown collision is negligible. Removal by Stokes flotation is main manner for large inclusions, while inclusion removal by wall adhesion is negligible. The smaller bubbles contribute the higher efficiency of inclusion removal.

• 2005-03-15

著者

• WANG Li

  Department of Biochemistry, Molecular Biology, and Cell Biology, Northwestern University

• Li Zheng

  Department Of Developmental Genetics Kumamoto University

• Wang Li

  Shougang Res. Inst. Of Technol. Beijing Chn

• Zhang Qiao

  Univ. Sci. And Technol. Beijing Beijing Chn

• ZHANG Qiao

  Metallurgical and Ecological Engineering School, University of Science and Technology Beijing

• PENG Shi

  Continuous Casting Center, Central Iron and Steel Research Institute

• Zhang Qiao

  Metallurgical And Ecological Engineering School University Of Science And Technology Beijing

• Peng Shi

  Continuous Casting Center Central Iron And Steel Research Institute

• Wang Li

  Department Of Automotive Engineering And State Key Lab Of Automotive Safety And Energy Tsinghua Univ

• Wang Li

  Department Of Applied Physics Beijing Polytechnic University

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