Measurements for turbulent channel flow containing microbubbles using PIV/LIF technique

Shigeki Nagaya, Koichi Hishida, Yoshiaki Kodama, Akira Kakugawa

研究成果: Conference contribution

抄録

It is known that local skin friction can be reduced by injecting microbubbles into a turbulent boundary layer. However, so far the mechanism of the reduction has never been understood. In the present study, the objective is to understand the characteristics of a turbulent flow field containing microbubbles with an experimental approach in order that the mechanism for the skin friction reduction is clearly elucidated. In order to measure the flow with the microbubbles, a combination of PIV and LIF methods is developed. Measurements are carried out for a horizontal channel flow with microbubbles by which the skin friction is reduced. Modifications of the wall turbulence due to the injection of the microbubbles are discussed.

本文言語English
ホスト出版物のタイトルFluids Engineering
出版社American Society of Mechanical Engineers (ASME)
ページ757-763
ページ数7
ISBN(印刷版)0791836576, 9780791836576
DOI
出版ステータスPublished - 2002

出版物シリーズ

名前ASME International Mechanical Engineering Congress and Exposition, Proceedings

ASJC Scopus subject areas

  • 機械工学

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