加圧熱衝撃事象における圧力容器内き裂の応力拡大係数の3D-CFD&FEM解析
英字タイトル:
3D-CFD & FEM analysis of RPV stress intensity factor for cracks subjected to PTS phenomena 京都大学 阮 小勇 Xiaoyong RUAN Member
著者:
中筋 俊樹 Toshiki NAKASUJI 森下 和功 Kazunori MORISHITA
発刊日:
公開日:
Computational Fluid DynamicsFracture MechanicsPressurized Thermal ShocksReactor Pressure VesselStress Intensity Factor
3D-CFD & FEM analysis of RPV stress intensity factor for cracks subjected to PTS phenomena 京都大学 阮 小勇 Xiaoyong RUAN Member
著者:
中筋 俊樹 Toshiki NAKASUJI 森下 和功 Kazunori MORISHITA
発刊日:
公開日:
カテゴリ: 第13回
キーワードタグ:Computational Fluid DynamicsFracture MechanicsPressurized Thermal ShocksReactor Pressure VesselStress Intensity Factor
概要
The integrity of the Reactor Pressure Vessel (RPV) subjected to Pressurized Thermal Shocks (PTS) by cold water injection through the cold leg owing to a Loss-Of-Coolant Accident (LOCA). Fracture Mechanics (FM) analysis evaluation for cracks of the inner surface in the RPV during PTS events, which is important in assessing the safety of nuclear power plants. Conventional, one-dimensional thermal hydraulic analysis and simple model fracture mechanics analysis has been performed. In the present study, the three-dimensional Computational Fluid Dynamics (CFD) simulations and Fracture Mechanics analysis is performed. And it revealed the dependence of distributed for Stress Intensity Factor (SIF) occurred to the cracks.
