Mixing Evaluation of a Vertical Bubble-driven Plume with Various Types of Air Injection Nozzles

• 藤林 晃夫

  ＪＦＥスチール（株）スチール研究所

• 井口 学

  北海道大学工学研究科

• 石井 俊夫

  ＪＦＥスチール（株）スチール研究所

Bibliographic Information

Other Title

• ４つのタイプの空気吹き込みノズルを用いた場合の気泡噴流の熱輸送・混合の実験的評価
• 4ツ ノ タイプ ノ クウキ フキコミ ノズル オ モチイタ バアイ ノ キホウ フンリュウ ノ ネツ ユソウ ・ コンゴウ ノ ジッケンテキ ヒョウカ

Abstract

    Mixing and entrainment of vertical bubbly plumes with 4 vaious types of air injection nozzles have been evaluated by simultaneous velocity-temperature measurements. Local velocity and temperature have been measured by a Laser Doppler Velocimetry(LDV) and thermistor probes respectively. The porous plug nozzle, which generates swarm of small bubbles, produces smaller scalar fluctuation and less contributes mixing and entrainment than any other nozzles. The work quantifies the expected tendency that the mixing is improved by the larger velocity fluctuations produced by bigger bubbles.

Journal

• Journal of the Japanese Society for Experimental Mechanics

  Journal of the Japanese Society for Experimental Mechanics 11 371-376, 2011

  The Japanese Society for Experimental Mechanics

Keywords

• Bubbly Plume
• Two-phase Flow
• Laser Doppler Velocimetry
• Thermistor
• Turbulence
• Scalar Transport

Details

• CRID: 1390001205190899200
• NII Article ID: 130004489791
• NII Article ID: 10030287061
• NII Book ID: AA11822914
• DOI: 10.11395/jjsem.11.371
• ISSN: 18844219
• ISSN: 13464930
• NDL BIB ID: 023468917
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I023468917
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed