ワイヤーコイル付き垂直管内上昇気液二相流の流動特性　第２報　　ボイド率および液膜厚さへの影響

• 竹島 敬志

• 藤井 照重

• 竹中 信幸

• 浅野 等

書誌事項

タイトル別名

• Flow Characteristics of Upward Gas-Liquid Two-Phase Flow in a Vertical Tube with a Wire Coil. 2nd Report. Effect on Void Fraction and Liquid Film Thickness.
• ワイヤーコイル ツキ スイチョクカン ナイ ジョウショウキエキ 2ソウリュウ ノ リュウドウ トクセイ ダイ2ホウ ボイドリツ オヨビ エキマク アツサ エ ノ エイキョウ

抄録

An experimental study has been carried out to clarify the characteristics of the void fraction and liquid film thickness of air-water two-phase flow in vertical tubes of 25 mm inside diameter with wire coil of varying wire diameter and pitch. Flow pattern in the experiment of average void fraction and local void fractrion distribution in a cross section is bubble flow, and liquid film thickness is in the region of semi-annular and annular flow. It is clarified from these experiments that the average void fraction in tubes with a wire coil is lower than that of the smooth tube and decreases with the wire diameter owing to the centrifugal force of swirl flow which concentrates bubbles at the center of the tube, and the liquid film thickness between the wire coil is uniformed with the decrease of the pitch of wire coil and that liquid film becomes thicker after the passage of wire coil with the increase of the wire diameter.

収録刊行物

• 日本機械学会論文集Ｂ編

  日本機械学会論文集Ｂ編 66 (646), 1467-1472, 2000

  一般社団法人 日本機械学会

キーワード

• Vertical Upward Flow

詳細情報

• CRID: 1390282681160895488
• NII論文ID: 110002393181
• NII論文ID: 130004223907
• NII書誌ID: AN00187441
• DOI: 10.1299/kikaib.66.646_1467
• ISSN: 18848346
• ISSN: 03875016
• NDL書誌ID: 5384418
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I5384418
• Web Site: http://www.jstage.jst.go.jp/article/kikaib1979/66/646/66_646_1467/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可