[1B08-14] Boiling and Condensation

[1B13] Study on behavior of bubbles and process of coalescence by using CMFD simulation code TPFIT

(1)Effect of pressure on the behavior of bubbles and process of coalescence

*Ayako Ono¹, Takayuki Suzuki¹, Hiroyuki Yoshida¹ (1. Japan Atomic Energy Agency)

Keywords:Critical heat flux, behavior of bubbles, coalescence of bubbles, high pressure, computational multi-fluid dynamics

The behavior of bubbles and the process of coalescence are simulated by a computational multi-fluid dynamics (CMFD) simulation code TPFIT, which will contribute to develop the prediction method of critical heat flux based on the liquid-layer evaporation model. In this study, the calculation results in various pressure condition will be shown and the effect of the pressure on the behavior of bubbles will be discussed.