Yasuteru Sibamoto

TL;DR: In this paper, the authors identify what should be clarified further about the progression of the accident at Units 1-3 through the review and analysis of information released from Tokyo Electric Power Company and government authorities, in order to contribute to establishing a new framework that pursues continuous improvement toward the highest standards of safety that can reasonably be achieved.

TL;DR: In this paper, a modified version of OpenFOAM was used to estimate turbulent kinetic energy production around a stagnation point, and the Katsuki model to consider turbulence damping in density stratification.

TL;DR: In this article, the authors used the computational fluid dynamics (CFD) techniques focusing on models for turbulent Schmidt Sct and Prndtl Prt numbers to understand the erosive flow pattern created from a horizontal hot air jet impinging on a vertical cylinder.

TL;DR: In this article, the authors investigated the density stratification behavior when the top vessel was cooled by the stagnant water and the density was initially built-up with helium (simulant of hydrogen), air and steam gases.

TL;DR: In this article, the authors focused on the turbulent Schmidt number Sct for improving the Reynolds-averaged Navier-Stokes (RANS) accuracy and implemented the dynamic modeling for Sct based on the previous studies into the OpenFOAM ver 2.3.