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

Shigeki Nagaya; Koichi Hishida; Yoshiaki Kodama; Akira Kakugawa

doi:10.1115/IMECE2002-33791

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

Shigeki Nagaya, Koichi Hishida, Yoshiaki Kodama, Akira Kakugawa

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

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.

Original language	English
Title of host publication	Fluids Engineering
Publisher	American Society of Mechanical Engineers (ASME)
Pages	757-763
Number of pages	7
ISBN (Print)	0791836576, 9780791836576
DOIs	https://doi.org/10.1115/IMECE2002-33791
Publication status	Published - 2002
Externally published	Yes

Publication series

Name	ASME International Mechanical Engineering Congress and Exposition, Proceedings

Keywords

Bubble-flow interaction
PIV/LIF measurement
Skin friction reduction
Turbulence modification

ASJC Scopus subject areas

Mechanical Engineering

Access to Document

10.1115/IMECE2002-33791

Cite this

Measurements for turbulent channel flow containing microbubbles using PIV/LIF technique. / Nagaya, Shigeki; Hishida, Koichi; Kodama, Yoshiaki et al.
Fluids Engineering. American Society of Mechanical Engineers (ASME), 2002. p. 757-763 (ASME International Mechanical Engineering Congress and Exposition, Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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abstract = "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.",

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AU - Nagaya, Shigeki

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AU - Kodama, Yoshiaki

AU - Kakugawa, Akira

PY - 2002

Y1 - 2002

N2 - 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.

AB - 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.

KW - Bubble-flow interaction

KW - PIV/LIF measurement

KW - Skin friction reduction

KW - Turbulence modification

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

Abstract

Publication series

Keywords

ASJC Scopus subject areas

Access to Document

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