2017 Fall Meeting

Presentation information

Oral presentation

III. Fission Energy Engineering » 304-1 Thermal Hydraulics, Energy Conversion, Energy Transfer, Energy Storage

[1E18-20] CCFL

Wed. Sep 13, 2017 5:25 PM - 6:15 PM Room E (B32 - B3 Block)

Chair:Kenichiro Nozaki (TEPCO HD)

5:25 PM - 5:40 PM

[1E18] Countercurrent Flow Limitation at Lower End of Vertical Pipes

(1)Correlation of Interfacial Friction for one-region computation

*KOJI NISHIDA1, TAKAYOSHI KUSUNOKI1, MICHIO MURASE1 (1. Institute of Nuclear Safety System, Incorporated)

Keywords:Steam Generator, Heated tube, Countercurrent Flow Limitation, One-region Computation, Interfacial Friction Factor

鉛直管下端での気液対向流制限(CCFL)の予測を目的として、環状流モデルに基づく一領域計算を行い、計算結果がCCFLデータとよく一致するように、無次元直径と気液粘性比もしくは気液密度比の関数として界面摩擦相関式の補正項を導出した。