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수치해석에 의한 버터플라이 밸브의 유량계수 및 유동특성에 관한 연구
곽경민(Kyung-Min Kwak),조지승(Ji-Sung Cho),김진대(Jin-Dae Kim),이중형(Jung-Hyung Lee) 한국기계가공학회 2012 한국기계가공학회지 Vol.11 No.4
The objective of this study is to simulate flow coefficient and flow characteristics such as velocity and pressure distribution for butterfly valve. Butterfly valves used in this study are 65A, 80A and 100A, in size, and of which the opening angle is varied. The flow coefficient, Kv, increases as the disc opening and valve size are increase. When using flow coefficient meanwhile specific curve of flow rate is also determined. The flow velocity between disc and seat increase as the disc opening decrease. The re-circulating zone is also observed in downstream behind disc.