• 제목/요약/키워드: Dynamic Neutron Radiography

검색결과 5건 처리시간 0.024초

중성자 래디오그래피를 이용한 액체금속 유동장 측정 (Measurement of Liquid-Metal Flow with a Dynamic Neutron Radiography)

  • 차재은;사이토
    • 한국가시화정보학회지
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    • 제9권4호
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    • pp.63-68
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    • 2011
  • The flow-field of a liquid-metal system is very important for the safety analysis and the design of the steam generator of liquid-metal fast breeder reactor. Dynamic neutron radiography (DNR) is suitable for a visualization and measurement of a liquid metal flow and a two-phase flow in a metallic duct. However, the three dimensional DNR techniques is not enough to obtain the velocity information in the wide channel up to now. In this research, a high speed DNR technique was applied to visualize the heavy liquid-metal flow field in the narrow channel with the HANARO-beam facility. The images were taken with a high frame-rate neutron radiography at 250 fps and analyzed with a Particle Image Velocimetry(PIV) method. The images were compared with the results of the commercial CFX code to study the feasibility of DNR technique for the measuring the heavy liquid-metal flow field. The PIV images could discern the turbulent vortex flow in the two-dimensional narrow channel.