2021 Annual Meeting

Presentation information

Oral presentation

V. Nuclear Fuel Cycle and Nuclear Materials » 504-3 Fuel Reprocessing

[2H13-16] Severe Accident at Reprocessing Plant

Thu. Mar 18, 2021 4:15 PM - 5:30 PM Room H (Zoom room 8)

Chair: Takehiko Tsukahara (Tokyo Tech)

4:45 PM - 5:00 PM

[2H15] Enhancement of Analysis Method for Important Phenomenon of Severe Accidents at Reprocessing Plant

(6)Computational cost reduction of hydrogen explosion simulation by Artificial Thickening Flame Method

*Nobuyuki Tsuboi1, Yoshikazu Tamauchi2, Takashi Kodama2, A. Koichi Hayashi3 (1. Kyushu Institute of Technology, 2. Japan Nuclear Fuel Limited, 3. Aoyama Gakuin University)

Keywords:Hydrogen explosion, Hydrogen explosion analysis, Deflagration-to-Detonation Transition (DDT), Artificial Thickening Flame (ATF)

水素爆発時の重要現象である圧力、流速の数値解析には、高い格子解像度が要求され計算コストが膨大となる傾向がある。計算コストを低減しつつ、高解像度の計算を再現することを目的として、Artificial Thickening Flame法を適用した解析を実施した。