글로브 밸브의 동특성 분석을 위한 유동가시화

Globe valves are used to control the flow or the pressure of the pipe system in a nuclear power plant. The periodic diagnosis of them has been carried out to guarantee the safety of a nuclear power plant. Therefore it is necessary to study on the flow dynamics of globe valves in order to analyze its faults and performance. We acquired the 3D design information of the globe valve. A globe valve is made of acrylamide so that we can see the inside of the globe valve. The flow visualization test is carried out to analyze the inner flow of the valve. The test system is composed of the acrylic valve, a stripe laser and a high speed camera. The velocity distribution of the flow is analyzed by the flow analysis program with images captured by the high speed camera.