Simultaneous Particle Image Velocimetry (PIV) measurement and Planar Laser Induced Fluorescence (PLIF) measurement at the same position were performed to clarify the relationship between spatial structure and mass transfer in the drag reducing surfactant flow. In the drag reducing flow, mass flux is largely suppressed in the near-wall region with increasing drag reduction rate. To discuss the relationship between coherent motion and drag reduction more detail, weighted probability density function was also calculated. As a result of simultaneous measurement, diffusion of wall-normal direction is largely suppressed and this indicated that turbulent coherent structure changes and sweep and ejection which produce the skin frictional drag are suppressed.
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ASME/JSME 2011 8th Thermal Engineering Joint Conference
March 13–17, 2011
Honolulu, Hawaii, USA
Conference Sponsors:
- Heat Transfer Division
ISBN:
978-0-7918-3892-1
PROCEEDINGS PAPER
Simultaneous PIV and PLIF Measurement on the Drag Reducing Channel Flow of the Homogeneous Surfactant Solution
Takahiro Watanabe,
Takahiro Watanabe
Tokyo University of Science, Noda, Chiba, Japan
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Kohei Tanaka,
Kohei Tanaka
Tokyo University of Science, Noda, Chiba, Japan
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Masaaki Motozawa,
Masaaki Motozawa
Tokyo University of Science, Noda, Chiba, Japan
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Yasuo Kawaguchi
Yasuo Kawaguchi
Tokyo University of Science, Noda, Chiba, Japan
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Takahiro Watanabe
Tokyo University of Science, Noda, Chiba, Japan
Kohei Tanaka
Tokyo University of Science, Noda, Chiba, Japan
Masaaki Motozawa
Tokyo University of Science, Noda, Chiba, Japan
Yasuo Kawaguchi
Tokyo University of Science, Noda, Chiba, Japan
Paper No:
AJTEC2011-44464, T10097; 8 pages
Published Online:
March 1, 2011
Citation
Watanabe, T, Tanaka, K, Motozawa, M, & Kawaguchi, Y. "Simultaneous PIV and PLIF Measurement on the Drag Reducing Channel Flow of the Homogeneous Surfactant Solution." Proceedings of the ASME/JSME 2011 8th Thermal Engineering Joint Conference. ASME/JSME 2011 8th Thermal Engineering Joint Conference. Honolulu, Hawaii, USA. March 13–17, 2011. T10097. ASME. https://doi.org/10.1115/AJTEC2011-44464
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