Three-dimensional measurements of microbubbles in a turbulent pipe flow by digital-holographic PTV

Shin-ichi Satake; Tadashi  Kikuchi; Hirotaka  Iida; Tomoaki Kunugi

doi:10.1615/ICHMT.2012.ProcSevIntSympTurbHeatTransfPal.2370

THMT-12. Proceedings of the Seventh International Symposium On Turbulence Heat and Mass Transfer

September, 24-27, 2012, Palermo, Italy

DOI: 10.1615/ICHMT.2012.ProcSevIntSympTurbHeatTransfPal

ISBN Print: 978-1-56700-302-4

ISSN: 2377-2816

Three-dimensional measurements of microbubbles in a turbulent pipe flow by digital-holographic PTV

pages 2305-2310

DOI: 10.1615/ICHMT.2012.ProcSevIntSympTurbHeatTransfPal.2370

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Shin-ichi Satake
Department of Applied Electronics, Tokyo University of Science, 6-3-1 Niijuku, Katsushika-ku, Tokyo 125-8585 Japan

Tadashi Kikuchi
Department of Applied Electronics, Tokyo University of Science 2641 Yamazaki, Noda, Chiba, 278-8510, Japan

Hirotaka Iida
Department of Applied Electronics, Tokyo University of Science 2641 Yamazaki, Noda, Chiba, 278-8510, Japan

Tomoaki Kunugi
Department of Nuclear Engineering, Kyoto University, Kyoto Daigaku-Katsura, Nishikyo-ku, Kyoto, Japan

ABSTRAKT

Three-dimensional simultaneous measurements of many flowing microbubbles and velocity field surrounding the bubbles in a turbulent pipe flow are performed by micro-digital holographic velocimetry. The microbubbles positions and many particles surrounding the bubble can be reconstructed by a digital hologram. This technique successfully applies to the three-dimensional dynamics of many air microbubbles in a turbulent pipe flow. The velocity of the microbubbles and flow surrounding the microbubble is simultaneously obtained.

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