Analysis on the Leakage Behavior of Cable Facility Using Gothic and Gothic 3D Models

Abstract In this paper, the laminar leakage model in the leakage module of GOTHIC8.3 code is used to simulate the leakage behavior of Containment thermalAlhydraulic and aerosol Behavior in Light water rEactor (CABLE) test facility caused by penetration. First of all, the leakage rate factor is measured through the leakage rate test performed on the CABLE test facility under reference pressure and temperature. Then, a lumped parameter model and a distributed parameter model are established respectively for CABLE using GOTHIC8.3 code. Both models are modeled with the leakage module. Then, the leakage rate factor measured from the leakage rate test was used to analyze the leakage behavior in the GOTHIC8.3 distributed parameter model. Finally, two models are used to simulate the leakage rate test of CABLE facility, and the results are compared. Results indicate that the two models with the same leakage rate factor have the same total system leaking mass flow. Settings of different leakage surface affect the leaking mass flow position and the local leaking mass flow of cells in leakage surface, but the temperature and flow field distributions of containment vessel have little difference among the cases. With the advantages of the distributed parameter model, it can simulate the leakage behavior more accurately.