Effect of Small Rectangular Channel Height on Bubble Moving Velocity in Gas-liquid Two-phase Flow through Sudden Contraction

• FUKASAWA SATOSHI

  北海道大学大学院工学院材料科学専攻

• KUMAGAI TAKEHIKO

  北海道大学大学院工学研究院材料科学部門

• OHMI TATSUYA

  北海道大学大学院工学研究院材料科学部門

• IWAI KAZUHIKO

  北海道大学大学院工学研究院材料科学部門

• IGUCHI MANABU

  北海道大学大学院工学研究院材料科学部門

Bibliographic Information

Other Title

• 急縮小部を有する微小流路内気液二相流の気泡速度に及ぼす流路高さの影響
• キュウシュクショウブ オ ユウスル ビショウ リュウロ ウチキエキ ニソウリュウ ノ キホウ ソクド ニ オヨボス リュウロ タカサ ノ エイキョウ

Abstract

An experimental investigation is carried out on the effects of a sudden contraction on the characteristics of an air-water two-phase flow in a millimeter-scale rectangular channel. The results reveal that the flow pattern transition types caused by sudden contraction can be basically classified into five. The scatter of the leading edge velocity of a bubble observed downstream of the sudden contraction increases as the channel height becomes smaller than a certain critical value. This phenomenon is not beneficial for practical usage of gas-liquid two-phase flows in micro channels.

Journal

• JAPANESE JOURNAL OF MULTIPHASE FLOW

  JAPANESE JOURNAL OF MULTIPHASE FLOW 27 (2), 168-174, 2013

  THE JAPANESE SOCIETY FOR MULTIPHASE FLOW

Keywords

• Gas-liquid two-phase flow
• Sudden contraction
• Millimeter-scale channel
• Flow pattern
• Bubble velocity

Details

• CRID: 1390282679414588288
• NII Article ID: 10031176612
• NII Book ID: AN10088286
• DOI: 10.3811/jjmf.27.168
• ISSN: 18815790
• ISSN: 09142843
• HANDLE: 2115/74953
• NDL BIB ID: 024796217
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I024796217
• Text Lang: en
• Data Source:
  • JaLC
  • IRDB
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed