New Interfacial Drag Force Model Including Effect of Bubble Wake, (I) Model Development for Steam-Water Bubbly Flow in Large-Diameter Pipes

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概要

• 論文の詳細を見る

• Several experimental results show that bubbles can easily be captured in the wake formed by leading bubbles when multiple bubbles are rising in a liquid. It is suggested from this experimental result that the effect of bubble wake should be included in the constitutive relationships representing the interfacial drag force. In the present study, steam-water bubbly flow experiments were performed to develop a new interfacial drag force model including the effect of bubble wake. Since the validity of the existing constitutive equations have been tested mainly for two-phase flow in small-diameter pipes, our study focused on two-phase flow in a large-diameter pipe. Using a one-dimensional two-fluid model, the applicability of the new interfacial drag force model to our experimental conditions was investigated. As a result, it was shown that the present model markedly improves the accuracy of the predicted results. It was therefore demonstrated that the present bubble wake model is effective at least for the conditions which were used for model development. Its applicability to different conditions will be discussed in a subsequent study.

• 社団法人 日本原子力学会の論文
• 1998-12-25

著者

• Yoshioka Yuzuru

  Research And Development Department Research And Development Headquarters The Japan Atomic Power Co.

• Okawa Tomio

  Nuclear Energy Systems Department Central Research Institute Of Electric Power Industry

• YONEDA Kimitoshi

  Nuclear Energy Systems Department, Central Research Institute of Electric Power Industry

• Yoneda K

  Central Res. Inst. Electric Power Ind.

関連論文

• New Interfacial Drag Force Model Including Effect of Bubble Wake, (I) Model Development for Steam-Water Bubbly Flow in Large-Diameter Pipes

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