Study of Two-Phase Flow Behavior and Turbulent Excitation Mechanism in a U-Bend Tube Bundle in Steam Generator

• NAKAMURA T.

  Takasago Research and Development Center, Mitsubishi Heavy Industries, Ltd.

• Sakata Kaoru

  Takasago Research and Development Center, Mitsubishi Heavy Industries, Ltd.

• Tsuge Ayao

  Takasago Research and Development Center, Mitsubishi Heavy Industries, Ltd.

• Nakamura Tomomichi

  Takasago Research and Development Center, Mitsubishi Heavy Industries, Ltd.

• Saito Itaru

  Kobe Shipyard and Engine Works, Mitsubishi Heavy Industries, Ltd.

抄録

Flow fields and tube exciting forces were investigated in straight tube-bundles and in a U-bend tube-bundle for several conditions of air-water two-phase flow. The two-phase turbulent exciting forces were correlated with the local flow behavior to elucidate the excitation mechanism. In the straight tube-bundles, the excitation was found to be due to the impact force of water slugs passing around the tubes, which is proportional to the dynamic pressure of the water slug. The estimation formula thus obtained was applied to the U-bend environment and it agreed fairly well with the measured result. Thus the excitation mechanism and its relation with the local flow field has become clear.

収録刊行物

• JSME International Journal, Series B

  JSME International Journal, Series B 36 (3), 439-, 1993

  一般社団法人日本機械学会

キーワード

• Fluid Dynamics
• Fluid Force
• Flow Induced Vibration
• Steam Generator
• Tube-Bundle
• Pressurized Water Reactor
• Air-Water Two-Phase Flow
• Water Slug

詳細情報

• CRID: 1571417127049920512
• NII論文ID: 110002976678
• NII書誌ID: AA10888815
• ISSN: 13408054
• 本文言語コード: en
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