Effect of Nozzle Swirl Blade on Flow Pattern in Runner during Uphill Teeming

• Hallgren Line

  Division of Applied Process Metallurgy, KTH

• Takagi Shigeo

  Department of Mechanical Engineering, Nippon Institute of Technology

• Eriksson Robert

  Division of Applied Process Metallurgy, KTH

• Yokoya Shinichiro

  Division of Applied Process Metallurgy, KTH Department of Mechanical Engineering, Nippon Institute of Technology

• Jönsson Pär

  Division of Applied Process Metallurgy, KTH

抄録

Recent research has found a swirling flow induced by a twist-tape swirl blade inserted in the submerged entry nozzle of both slab and billet continuous casting molds to be remarkably effective for controlling the fluid-flow pattern in mold filling. The objective of the work reported on in this paper was to investigate usage of the swirl blade in the filling of molds in uphill teeming. Both mathematical and physical modeling were employed. Resulting velocity predictions and measurements corresponding to different positions in the water model were compared. Specific focus was on manipulation of the flow pattern by the swirl blade and its affect on flow unevenness, i.e. tangential and axial velocities. Good agreement was observed between the calculated and experimental results. The study's findings strongly suggest that equipping the entry nozzle of the uphill-teeming mold with a swirl blade would be a highly effective means of reducing flow unevenness during filling.

収録刊行物

• ＩＳＩＪ　Ｉｎｔｅｒｎａｔｉｏｎａｌ

  ＩＳＩＪ　Ｉｎｔｅｒｎａｔｉｏｎａｌ 46 (11), 1645-1651, 2006

  一般社団法人 日本鉄鋼協会

キーワード

• swirling flow
• uphill teeming
• nozzle
• casting
• fluid flow
• modeling
• CFD
• LDA

詳細情報

• CRID: 1390282681465855360
• NII論文ID: 10018555385
• NII書誌ID: AA10680712
• DOI: 10.2355/isijinternational.46.1645
• ISSN: 13475460
• ISSN: 09151559
• Web Site: http://www.jstage.jst.go.jp/article/isijinternational/46/11/46_11_1645/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可