Multiphase Technology in Nuclear Engineering Area

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  • 秋本 肇
    日本原子力研究開発機構 原子力基礎工学研究部門

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Other Title
  • 原子力工学分野における混相流解析技術
  • ゲンシリョク コウガク ブンヤ ニ オケル コンソウリュウ カイセキ ギジュツ(ゲンシロ セッケイ ノ タメ ノ キエキ ニソウリュウ カイセキ ギジュツ ノ カイハツ)
  • (Development of Two-phase Flow Analysis Codes for Reactor Design)
  • （原子炉設計のための気液二相流解析技術の開発）

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Research and development activities for two-phase analysis codes for nuclear reactor design and safety analyses have been reviewed focusing in recent twenty five years. For reactor safety evaluation, large-scale tests were performed to confirm effectiveness of ECCS in 1980's and 1990's. These test results were succeeded to so-called best-estimate codes such as RELAP5 , TRAC codes. Severe accident researches were performed in 1980's and 1990's and accident management methods were studied. Detailed simulation methods such as subchannel analysis, multi-dimensional analyses have been developed based on test results and computational technology enhancement in 1990's and 2000's. Future scope is summarized briefly.

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