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Na冷却高速炉における液中渦予測手法の開発

Development of computational method for predicting vortex cavitation in the reactor vessel of JSFR

浜田 紀昭*; 藤又 和博*; 椎名 孝次*; 早川 教*; 渡辺 収*; 山野 秀将  

Hamada, Noriaki*; Fujimata, Kazuhiro*; Shiina, Koji*; Hayakawa, Satoshi*; Watanabe, Osamu*; Yamano, Hidemasa

Na冷却高速炉において、加速流れ中の液中渦により発生する可能性があるキャビテーションを予測するため、伸長渦理論に基づく液中渦予測手法を開発した。本手法をFBR実用炉の縮小モデル試験に適用し、キャビテーションの発生を予測できる見通しを得た。

A computational method for predicting vortex cavitation based on the theory of vortex streching was developed to predict possible cavitation generated by vortex at the center of accelerating swirl flow in the reactor vessel in a sodium-cooled fast reactor. This method was applied to a scale model test of a commercial fast reactor, leading to feasibility of this method that can predict the cavitation.

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