液糸の短波長分断機構の理論的研究

• 梅村 章

  名古屋大学大学院工学研究科航空宇宙工学専攻

書誌事項

タイトル別名

• A Theoretical Study on Short-Wavelength Disintegration Mechanism of Liquid Ligaments
• エキシ ノ タンハチョウ ブンダン キコウ ノ リロンテキ ケンキュウ

抄録

In our microgravity experiments for a near-critical mixing surface liquid jet it is observed that the liquid column is disintegrated with a certain, short wavelength at a relatively short distance from the nozzle exit. In the present paper, the underlying physics of this peculiar behavior are explored on the basis of a theoretical model, because the phenomena may be a candidate mechanism for the breakup of liquid ligament involved in turbulent atomization. It is found that the short-wavelength breakup is caused by the presence of the jet tip which contracts by the action of surface tension. The presence of the nozzle exit does not play any essential role on this disintegration, but at low pressure it leads to the excitation of long-wavelength breakup due to the Rayleigh type of instability wave which is generated from the capillary wave reaching the nozzle exit and reflecting.

収録刊行物

• 日本航空宇宙学会論文集

  日本航空宇宙学会論文集 56 (652), 228-238, 2008

  一般社団法人 日本航空宇宙学会

キーワード

• Liquid Atomization
• Circular Liquid Jet
• Instability
• Capillary Wave

詳細情報

• CRID: 1390001204470922240
• NII論文ID: 10024349566
• NII書誌ID: AA11307372
• DOI: 10.2322/jjsass.56.228
• ISSN: 24323691
• ISSN: 13446460
• NDL書誌ID: 9512977
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I9512977
• Web Site: https://www.jstage.jst.go.jp/article/jjsass/56/652/56_652_228/_pdf
• 本文言語コード: ja
• データソース種別:
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  • NDL
  • Crossref
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  • KAKEN
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