An optical measurement system and video camera were used to investigate gas-liquid two-phase flow characteristics in wetting and poorly wetting circular microchannels of 100 μm diameter. By examining the optical sensor signals from which void fraction and the lengths and velocities of gas slugs and liquid slugs were measured, the effects of wetting on the adiabatic two-phase flow characteristics of nitrogen gas and water were investigated. The data were obtained using a T-junction with the same internal diameter as the microchannel, but the T-junction itself was well wetting in both experiments. Besides the flat nose and tail of gas slugs at low gas and liquid flow rates, poorly wetting microchannel showed higher void fraction and friction pressure drop compared to the well wetting microchannel. The poorly wetting microchannel also showed the presence of short and low moving liquid slugs which were absent in well-wetting microchannel.
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ASME-JSME-KSME 2011 Joint Fluids Engineering Conference
July 24–29, 2011
Hamamatsu, Japan
Conference Sponsors:
- Fluids Engineering Division
ISBN:
978-0-7918-4440-3
PROCEEDINGS PAPER
Effect of Channel Wetting Properties on Flow Characteristics of Gas-Liquid Two-Phase Flow in a Microchannel Available to Purchase
Hideo Ide,
Hideo Ide
Kagoshima University, Kagoshima, Japan
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Ryuji Kimura,
Ryuji Kimura
Kagoshima University, Kagoshima, Japan
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Masahiro Kawaji
Masahiro Kawaji
City College of New York, New York, NY
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Hideo Ide
Kagoshima University, Kagoshima, Japan
Ryuji Kimura
Kagoshima University, Kagoshima, Japan
Masahiro Kawaji
City College of New York, New York, NY
Paper No:
AJK2011-10015, pp. 2493-2500; 8 pages
Published Online:
May 25, 2012
Citation
Ide, H, Kimura, R, & Kawaji, M. "Effect of Channel Wetting Properties on Flow Characteristics of Gas-Liquid Two-Phase Flow in a Microchannel." Proceedings of the ASME-JSME-KSME 2011 Joint Fluids Engineering Conference. ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 1, Symposia – Parts A, B, C, and D. Hamamatsu, Japan. July 24–29, 2011. pp. 2493-2500. ASME. https://doi.org/10.1115/AJK2011-10015
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