A CFD MODELING FOR TRANSIENT 3D GAS-LIQUID COUNTER CURRENT TWO-PHASE FLOW IN A UPTF PWR HOT LEG
Rahmat Agung Budi Santoso, Prof. Dr. Eng. Ir. Deendalianto, S.T., M.Eng
2011 | Skripsi | S1 TEKNIK MESIN-
A CFD simulation was successfully performed to investigate the counter-current two-phase flow limitation (CCFL) in a full scale reactor geometry of UPTF Test. No 11. The simulation was conducted at Helmholtz-Zentrum Dresden-Rossendorf (HZDR), by using a commercial CFD code of ANSYS CFX 13.0. The transient calculations were carried out using a gas/liquid inhomogeneous multiphase flow model coupled with a shear stress transport (SST) turbulence model. In this simulation, the drag coefficient of CD= 0.44 and the newly developed correlation of the drag coefficient (Höhne & Vallée, 2010) in the Algebraic Interfacial Area Density (AIAD) model were implemented. The results indicated a good agreement between calculation and experimental data on the CCFL characteristics and water level inside the hot leg.
Kata Kunci : Computational fluid dynamics (CFD), Counter-current flow limitation (CCFL), Upper plenum test facility (UPTF), Pressurized Water Reactor (PWR), Hot leg, Algebraic interfacial area density (AIAD), Drag coefficient.
