Study on flow-induced acoustic vibration of main steam pipe for power uprate

• Project/Area Number: 22360399
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Nuclear engineering
• Research Institution: The University of Tokyo
• Principal Investigator: OKAMOTO Koji 東京大学, 大学院・工学系研究科, 教授 (80204030)
• Project Period (FY): 2010 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥17,160,000 (Direct Cost: ¥13,200,000、Indirect Cost: ¥3,960,000); Fiscal Year 2012: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2011: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2010: ¥8,320,000 (Direct Cost: ¥6,400,000、Indirect Cost: ¥1,920,000)
• Keywords: 音響練成 / 高速度計測 / 原子力工学 / 振動工学 / 流体工学 / 音響連成 / 高凍度計測

Research Abstract

Flow-induced acoustic resonance of cavity had been experimentally investigated in order to prevent the damage of Nuclear Power Plant at the main steam line. The focus of the present investigation is on the clarification of characteristics of cavity flow with high Reynolds number quantitatively and qualitatively. The high-speed flow had been realized using the buffer tank for 30 seconds. The flow fluctuation had been quantitatively clarified using High-speed PIV technique. The mechanism of the acoustic resonance had been investigated using the experimental results.

Research Products

• [Presentation] 国産コード開発におけるV&V (2013)
  • Author(s): 岡本孝司
  • Organizer: 日本原子力学会 春の年会
  • Place of Presentation: 東大阪市・近畿大学
  • Invited
• [Presentation] High-speed PIV and V&V (2011)
  • Author(s): Koji OKAMOTO
  • Organizer: The Korea-Japan Joint Seminar on Meas. for Multi-scales & Multi-physics
  • Place of Presentation: Jeju, Korea
  • Year and Date: 2011-12-02
• [Presentation] High-speed PIV and V&V (2011)
  • Author(s): Koji OKAMOTO
  • Organizer: The Korea-Japan Joint Seminar on Measurements for Multi-scales & Multi-physics
  • Place of Presentation: Jeju University, Korea
  • Year and Date: 2011-12-02
• [Presentation] Multi-phase flowquantitative visualization for verification andvalidation (2011)
  • Author(s): Koji OKAMOTO
  • Organizer: the 7th Int. Symp. Measurement Tech. for Multiphase Flows
  • Place of Presentation: Tianjin, China
  • Year and Date: 2011-09-17
• [Presentation] High-speed quantitativevisualization on the flow-induced vibration,Int. Conf. on Jet (2010)
  • Author(s): Koji OKAMOTO
  • Organizer: Wakes and SeparatedFlows
  • Year and Date: 2010-09-29
• [Presentation] Quantitative high-speedvisualization (2010)
  • Author(s): Koji OKAMOTO
  • Organizer: 14th Int. Symp on FlowVisualization
  • Place of Presentation: Daegue, Korea
  • Year and Date: 2010-06-23