Presentation Information

4:05 PM - 4:20 PM JST(7:05 AM - 7:20 AM UTC)

[2B15]Effect of Diameters on Countercurrent Flow Limitation at Sharp-Edged Upper End of Vertical Pipes

*Michio Murase¹, Koji Nishida¹, Takayoshi Kusunoki¹, Akio Tomiyama² (1. Institute of Nuclear Safety System, Inc., 2. Kobe University)

Keywords:

pressurizer surge line,upper end of vertical pipe,countercurrent flow limitation,diameter

The effect of the diameters on countercurrent flow limitation (CCFL) at the sharp-edged upper end of vertical pipes was evaluated in detail using existing CCFL data, a clear difference of the diameter effect between different experiments was found in the region of diameters less than 30 mm.

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