背圧を考慮した湯流れシミュレーション

• 木間塚 明彦

  石川島播磨重工業(株)

• 大中 逸雄

  大阪大学大学院工学研究科

• 朱 金東

  Multi-Flow Software LTD.

• 大道 徹太郎

  大阪大学大学院工学研究科

書誌事項

タイトル別名

• Mold Filling Simulation with Consideration of Backpressure
• ハイアツ オ コウリョ シタ ユ ナガレ シミュレーション

抄録

  In case of mold filling, it is important to consider gas escape through the mold, gas vents and gas generation on the mold surface during mold filling. The pressure in the cavity increases due to the compression of the gas by the melt, affecting the mold filling behavior. Furthermore, the melt entraps gas or air in the die cavity. This paper presents a method to simulate the mold filling process taking into consideration backpressure and gas escape. The governing discrete equations for the momentum and mass conservation laws were derived by the DFDM (Direct-Finite-Difference-Method), and the staggered elements were used in the momentum conservation equation. Assuming that the gas in the cavity is ideal, the gas-flow in the mold was taken to follow the D'Arcy law. Simulated mold filling patterns agreed comparatively well with the results directly observed on an X-ray apparatus.

収録刊行物

• 鋳造工学

  鋳造工学 76 (5), 374-379, 2004

  公益社団法人 日本鋳造工学会

キーワード

• mold filling
• backpressure
• porosity
• entrapment
• simulation
• D'Arcy flow

詳細情報

• CRID: 1390282681484048000
• NII論文ID: 130004556495
• NII論文ID: 10013435787
• NII書誌ID: AN10514770
• DOI: 10.11279/jfes.76.374
• ISSN: 21855374
• ISSN: 13420429
• NDL書誌ID: 6949322
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6949322
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可