Measurement of turbulence modification by microbubbles causing frictional drag reduction

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)

Abstract

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).

Original languageEnglish
Title of host publicationProceedings of the 4th ASME/JSME Joint Fluids Engineering Conference
Subtitle of host publicationVolume 2, Part A, Symposia
EditorsA. Ogut, Y. Tsuji, M. Kawahashi, A. Ogut, Y. Tsuji, M. Kawahashi
Pages675-681
Number of pages7
Publication statusPublished - 2003 Dec 1
Event4th ASME/JSME Joint Fluids Engineering Conference - Honolulu, HI, United States
Duration: 2003 Jul 62003 Jul 10

Publication series

NameProceedings of the ASME/JSME Joint Fluids Engineering Conference
Volume2 A

Other

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

ASJC Scopus subject areas

  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

Fingerprint Dive into the research topics of 'Measurement of turbulence modification by microbubbles causing frictional drag reduction'. Together they form a unique fingerprint.

  • Cite this

    Kitagawa, A., Sugiyama, K., Ashihara, M. A., Hishida, K., & Kodama, Y. (2003). Measurement of turbulence modification by microbubbles causing frictional drag reduction. In A. Ogut, Y. Tsuji, M. Kawahashi, A. Ogut, Y. Tsuji, & M. Kawahashi (Eds.), Proceedings of the 4th ASME/JSME Joint Fluids Engineering Conference: Volume 2, Part A, Symposia (pp. 675-681). (Proceedings of the ASME/JSME Joint Fluids Engineering Conference; Vol. 2 A).