Numerical Simulation of Dripping Behavior of Droplet in Packed Bed Using Particle Method

• Kon Tatsuya

  Institute of Multidisciplinary Research for Advanced Materials, Tohoku University

• Natsui Shungo

  Institute of Multidisciplinary Research for Advanced Materials, Tohoku University

• Ueda Shigeru

  Institute of Multidisciplinary Research for Advanced Materials, Tohoku University

• Inoue Ryo

  Institute of Multidisciplinary Research for Advanced Materials, Tohoku University

• Ariyama Tatsuro

  Institute of Multidisciplinary Research for Advanced Materials, Tohoku University

抄録

The liquid flow in the packed bed strongly affects the productivity and operational stability of the blast furnace. It is controlled by the physical properties and wettability of the melt and the structure of the packed bed. However, this is a difficult object of analysis, as melt properties and conditions in the furnace are inhomogeneous. In this research, a three-dimensional model of the liquid flow in a packed bed was constructed using the MPS method, which is one of particle method, in order to express melt behavior. The liquid flow on solid surfaces was expressed by optimizing the relationship of energy at a three-phase (solid, gas, liquid) interface. The appropriateness of the calculation model was verified by analyzing and comparing the behaviors of liquids with different physical properties flowing on the surface of a single sphere experimentally and in calculations. Next, this model was applied to analysis of the flow of liquids dripping in a packed bed, and a simulation was calculated for a three-dimensional liquid flow comprising dispersion and coalescence of the liquid. Among the knowledge obtained in this study, the viscosity of a liquid migrating through a packed bed influences the velocity and flow path of the liquid, but has little effect on the amount of liquid which remains in a static condition in the packed bed.

収録刊行物

• ＩＳＩＪ　Ｉｎｔｅｒｎａｔｉｏｎａｌ

  ＩＳＩＪ　Ｉｎｔｅｒｎａｔｉｏｎａｌ 52 (9), 1565-1573, 2012

  一般社団法人 日本鉄鋼協会

キーワード

• ironmaking
• blast furnace
• liquid dripping
• packed bed
• mathematical modeling
• MPS method

詳細情報

• CRID: 1390282681463842560
• NII論文ID: 10031146448
• NII書誌ID: AA10680712
• DOI: 10.2355/isijinternational.52.1565
• COI: 1:CAS:528:DC%2BC38XhsVSlsLbF
• ISSN: 13475460
• ISSN: 09151559
• Web Site: https://www.jstage.jst.go.jp/article/isijinternational/52/9/52_1565/_pdf
• 本文言語コード: en
• データソース種別:
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• 抄録ライセンスフラグ: 使用不可