著者
川原 顕磨呂 佐田富 道雄 斉藤 栄俊 佐藤 泰生
出版者
THE JAPANESE SOCIETY FOR MULTIPHASE FLOW
雑誌
混相流 (ISSN:09142843)
巻号頁・発行日
vol.9, no.1, pp.26-36, 1995
被引用文献数
2

To provide data necessary for modeling turbulent mixing between subchannels in a nuclear fuel rod bundle, three experiments were made in series for equilibrium two-phase flows, in which net mass exchange does not occur between subchannels for each phase. The first one was the measurement of turbulent mixing rates of both gas and liquid phases by a tracer technique, using air and water as the working fluids. Three kinds of vertical test channels consisting of two subchannels were used. The data have shown that the turbulent mixing rate of each phase in a two-phase flow is strongly dependent on flow regime. So, to see the relation between turbulent mixing and two-phase flow configuration in the subchannels, the second experiment, flow visualization, was made. It was observed in slug and churn flows that a lateral inter-subchannel liquid flow of a large scale is caused by the successive axial transit of large gas bubbles in each subchannel, and the turbulent mixing for the liquid phase is dominated by this lateral flow. To investigate a driving force of such large scale lateral flow, the third experiment, the measurement of an instantaneous pressure differential between the subchannels, was made. The result showed that there is a close relationship between the liquid phase mixing rate and the magnitude of the pressure differential fluctuation.

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こんな論文どうですか? サブチャンネル内気液二相流の乱流混合:サブチャンネル間で流体移動量が平衡した流れについて(川原 顕磨呂ほか),1995 https://t.co/txnSRMoRmK

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