In this study, void drift phenomena, which are one of three components of the intersubchannel fluid transfer, have been investigated experimentally and analytically. In the experiments, data on flow and void redistributions were obtained for hydraulically nonequilibrium flows in a multiple channel consisting of two subchannels simplifying a triangle tight lattice rod bundle. In order to know the effects of the reduced surface tension on the void drift, water and water with a surfactant were used as test liquids. In addition, data on the void diffusion coefficient, , needed in a void drift model, have been obtained from the redistribution data. In the analysis, the flow and the void redistributions were predicted by a subchannel analysis code based on a one-dimensional two-fluid model. From a comparison between the experiment and the code prediction, the present analysis code was found to be valid against the present data if newly developed constitutive equations of wall and interfacial friction were incorporated in to the model to account for the reduced surface tension effects.
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January 2009
Research Papers
Effects of Surface Tension on Two-Phase Void Drift Between Triangle Tight Lattice Subchannels
Akimaro Kawahara,
Akimaro Kawahara
Department of Mechanical System Engineering, Graduate School of Science and Technology,
Kumamoto University
, Kumamoto City 860-8555, Japan
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Michio Sadatomi,
Michio Sadatomi
Department of Mechanical System Engineering, Graduate School of Science and Technology,
Kumamoto University
, Kumamoto City 860-8555, Japan
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Tatsuya Higuchi
Tatsuya Higuchi
Department of Mechanical System Engineering, Graduate School of Science and Technology,
Kumamoto University
, Kumamoto City 860-8555, Japan
Search for other works by this author on:
Akimaro Kawahara
Department of Mechanical System Engineering, Graduate School of Science and Technology,
Kumamoto University
, Kumamoto City 860-8555, Japan
Michio Sadatomi
Department of Mechanical System Engineering, Graduate School of Science and Technology,
Kumamoto University
, Kumamoto City 860-8555, Japan
Tatsuya Higuchi
Department of Mechanical System Engineering, Graduate School of Science and Technology,
Kumamoto University
, Kumamoto City 860-8555, JapanJ. Eng. Gas Turbines Power. Jan 2009, 131(1): 012903 (8 pages)
Published Online: October 2, 2008
Article history
Revised:
July 18, 2008
Received:
July 18, 2008
Published:
October 2, 2008
Citation
Kawahara, A., Sadatomi, M., and Higuchi, T. (October 2, 2008). "Effects of Surface Tension on Two-Phase Void Drift Between Triangle Tight Lattice Subchannels." ASME. J. Eng. Gas Turbines Power. January 2009; 131(1): 012903. https://doi.org/10.1115/1.2983083
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