버터플라이 밸브의 개도에 따른 유동특성에 관한 연구
A Study on Flow Characteristics about Butterfly Vlave Opening Angle
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참고문헌
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초록
Flow visualization of Butterfly valve is tested five cases(15°, 30°, 45°, 60° and 90°) of vlave opening angle. Measurement by the PIV(Particle Image Velocimetry) was conducted to investigate the flow characteristics of butterfly valve about discharge of dam.. Flow behaviors such as instantaneous and time-mean velocity vectors are investigated each cases. The results from flow visualization using PIV through the video which do not contain a cavitation phenomenon was confirmed in accordance with the valve opening. Performs valve opening and the flow properties of the Karman vortex generated by the frequency analysis is 90° was calculated the frequency of the butterfly valve applied to the actual dam. Butterfly valve for the emergency discharge valve is susceptible to cavitation caused by the valve opening 90° and repeat the cycle in the valve side of the vortex emission system is a high possibility of damage due to fatigue.
Abstract
Flow visualization of Butterfly valve is tested five cases(15°, 30°, 45°, 60° and 90°) of vlave opening angle. Measurement by the PIV(Particle Image Velocimetry) was conducted to investigate the flow characteristics of butterfly valve about discharge of dam.. Flow behaviors such as instantaneous and time-mean velocity vectors are investigated each cases. The results from flow visualization using PIV through the video which do not contain a cavitation phenomenon was confirmed in accordance with the valve opening. Performs valve opening and the flow properties of the Karman vortex generated by the frequency analysis is 90° was calculated the frequency of the butterfly valve applied to the actual dam. Butterfly valve for the emergency discharge valve is susceptible to cavitation caused by the valve opening 90° and repeat the cycle in the valve side of the vortex emission system is a high possibility of damage due to fatigue.
참고문헌 (6)
- Schweitzer. P. A., "Handbook of Valves", pp.93~103 (1972), Industrial Press Inc.
- Eom., K., "Performance of Butterfly Valves as Flow Controller", ASME, J.P.E., 110, pp.16~19 (1988)
- Lactor. C., "Numerical Simulation of the Three-Dimensional Flow around a Butterfly Valves", ASME Fluid Eng. Div. Pulb. FED, 69 (1998)
- Kim, R. H., "Numerical Simulation Butterfly Valve Fluid Flow", Pro. FLUENT User's Group Meeting, pp.296~313 (1992)
- S.M. Yang, "The Study on Flow Characteristics of Butter-fly Valve using Flow Visualization", Journal of the KSAE, 7(3), pp.79~84 (2005)
- 안국찬, "담수설비용 3차 편심 버터플라이 밸브 개발에 관한 연구", 한국기계기술학회지, 16(5), pp.1875~1880 (2014), 한국기계기술학회