전산유체역학을 활용한 원전용 밸브의 유량계수 산출에 대한 연구STUDY ON CALCULATION OF FLOW COEFFICIENT BY CFD FOR VALVE IN NUCLEAR POWER PLANT
- Other Titles
- STUDY ON CALCULATION OF FLOW COEFFICIENT BY CFD FOR VALVE IN NUCLEAR POWER PLANT
- Authors
- 김재형; 이정희
- Issue Date
- 2016
- Publisher
- 한국전산유체공학회
- Keywords
- 전산유체역학(CFD); 유량계수(Flow Coefficient); 밸브(Valve); 원자력발전소(Nuclear Power Plant)
- Citation
- 한국전산유체공학회지, v.21, no.4, pp 54 - 60
- Pages
- 7
- Journal Title
- 한국전산유체공학회지
- Volume
- 21
- Number
- 4
- Start Page
- 54
- End Page
- 60
- URI
- https://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/729
- DOI
- 10.6112/kscfe.2016.21.4.054
- ISSN
- 1598-6071
- Abstract
- The valve used in nuclear power plant must be qualified but the limitation of the test facility leads to use the numerical analysis. The flow coefficient is calculated with the consideration of the pressure, velocity and geometry. And the flow coefficient is the important physical property which is prepared using experiment or analysis by valve manufacturer. In this study, the analysis model was made according to ISA 75.02.01 and the mass flow rate and pressure drop ratio was calculated. The model of the expansion factor was applied to the simulation result and the pressure drop ratio at the start of the choked flow in the valve was found. With the simulation result, the consideration was performed that the expansion factor is the important physical property to the system engineer in addition to the flow coefficient.
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