Connection between full-lifetime and breakdown of puffs in transitional pipe flows

Mina Nishi, Özgür Ertunç, Antonio Delgado

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

Puff splitting was studied by direct measurement of the full-lifetime (LTf ull ) of transitional structures (puffs) in low Reynolds number pipe flows. During the investigations, a fully developed laminar pipe flow was triggered by an iris diaphragm with pre-defined amplitude and lapse time and the evolution of puffs was monitored by the transients of pressure drop along the pipe and the hot wire anemometry at the pipe exit. Those complementary measurements showed that a single puff favors to breakdown into two or more (splitting) puffs and later into slug-like puffs at Re ≈ 2300, where they are expected to have infinite LTfull.

本文言語English
ホスト出版物のタイトル7th IUTAM Symposium on Laminar-Turbulent Transition - Proceedings of the 7th IUTAM Symposium on Laminar-Turbulent Transition
出版社Springer Verlag
ページ537-540
ページ数4
ISBN(印刷版)9789048137220
DOI
出版ステータスPublished - 2010
イベント7th IUTAM Symposium on Laminar-Turbulent Transition - Stockholm, Sweden
継続期間: 2009 6月 232009 6月 26

出版物シリーズ

名前IUTAM Bookseries
18
ISSN(印刷版)1875-3507

Other

Other7th IUTAM Symposium on Laminar-Turbulent Transition
国/地域Sweden
CityStockholm
Period09/6/2309/6/26

ASJC Scopus subject areas

  • 土木構造工学
  • 自動車工学
  • 航空宇宙工学
  • 音響学および超音波学
  • 機械工学

フィンガープリント

「Connection between full-lifetime and breakdown of puffs in transitional pipe flows」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル