混相流研究の進展
Online ISSN : 1881-6088
Print ISSN : 1881-5804
ISSN-L : 1881-5804
論文
狭隘流路内における気液二相流計測手法の開発
(マイクロワイヤーメッシュセンサの平行平板間流れへの適用)
伊藤 大介木倉 宏成有冨 正憲
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ジャーナル フリー

2009 年 4 巻 p. 45-52

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抄録

A novel two-phase flow measuring technique based on local electrical conductivity measurement was developed for clarifications of three-dimensional flow structure in gas-liquid two-phase flow in a narrow channel. The measuring method applies the principle of conventional wire-mesh tomography, which can measure the instantaneous void fraction distributions in a cross-section of a flow channel. In this technique, the electrodes are fixed on the inside of the walls facing each other, and the local void fractions were obtained by the electrical conductivity measurement between electrodes arranged on each wall. Therefore, the flow structure and the bubble behavior can be investigated by three-dimensional void fraction distributions in the channel with narrow gap. In this paper, a micro Wire-Mesh Sensor (μWMS) which has the gap of 3 mm was developed, and the instantaneous void fraction distributions were measured. From the measured distributions, three-dimensional bubble distributions were reconstructed, and bubble volumes and bubble velocities were estimated.

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© 2009 日本混相流学会
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