2018 Fall Meeting

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Oral presentation

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

[2I10-17] Phase Change

Thu. Sep 6, 2018 2:45 PM - 4:55 PM Room I (B33 -B Building)

Chair:Michio Murase(INSS)

2:45 PM - 3:00 PM

[2I10] Bubble Lift-off Velocity in Subcooled Flow Boiling

*Shintaro Sakamoto1, Hiroki Ohori1, Koji Enoki1, Tomio Okawa1 (1. UEC)

Keywords:subcooled flow boiling, void fraction, lift-off velocity

Empirical correlations of bubble lift-off velocity were made in order to give the velocity to bubbles in numerical analysis of subcooled flow boiling. Observation of a bubble generation surface showed that the lift-off velocity is strongly correlated with the liquid velocity and the bubble growth velocity.