Measurement of turbulence modification by microbubbles causing frictional drag reduction

Atsuhide Kitagawa, Kazuyasu Sugiyama, Masa Aki Ashihara, Koichi Hishida, Yoshiaki Kodama

研究成果: Conference contribution

10 被引用数 (Scopus)

抄録

In this research, in order to clarify the mechanism for drag reduction caused by microbubbles, the turbulence structure of flow field including microbubbles in a horizontal channel is experimentally investigated using particle tracking velocimetry and laser induced fluorescence (PTV/LIF) technique. First, we discuss the particle image velocimetry (PIV) and PTV results for the liquid phase velocity detection. Second, using instantaneous measurement data, we obtain the profiles of the mean velocity, turbulence intensity and Reynolds stress of the liquid phase. In order to obtain the information of both the liquid and gas phases simultaneously, furthermore, we propose a new system based on the combination of PTV, LIF and infrared shadow technique (IST).

本文言語English
ホスト出版物のタイトルProceedings of the 4th ASME/JSME Joint Fluids Engineering Conference
ホスト出版物のサブタイトルVolume 2, Part A, Symposia
編集者A. Ogut, Y. Tsuji, M. Kawahashi
出版社American Society of Mechanical Engineers
ページ675-681
ページ数7
ISBN(印刷版)0791836967, 9780791836965
DOI
出版ステータスPublished - 2003
イベント4th ASME/JSME Joint Fluids Engineering Conference - Honolulu, HI, United States
継続期間: 2003 7月 62003 7月 10

出版物シリーズ

名前Proceedings of the ASME/JSME Joint Fluids Engineering Conference
2 A

Other

Other4th ASME/JSME Joint Fluids Engineering Conference
国/地域United States
CityHonolulu, HI
Period03/7/603/7/10

ASJC Scopus subject areas

  • 機械工学
  • 流体および伝熱

フィンガープリント

「Measurement of turbulence modification by microbubbles causing frictional drag reduction」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