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L-형 파이프 내 볼밸브 유동에 대한 RANS와 LES 수치해석
배기화(K.H. Bae),허형석(H.S. Heo),강상모(S.M. Kang) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.10
Numerical simulations are performed using RANS and LES on flow through a ball valve for L-shaped pipe. Turbulence models adopted for RANS and LES simulations are k-ε model, Sear Stress Transport(SST) model and LES model. The water with 5000 is exerimentally studied by CFX which is useful simulater in flow. Result of simulations are compared with each other model, that is k-ε, SST and LES, in pressure. There's some diffrence between RANS model and LES. LES model has more thaw pressure result.