Study on phase-change modeling compatible with interface-tracking method

Ito, Kei*; Ezure, Toshiki ; Odaira, Naoya*; Ito, Daisuke*; Saito, Yasushi*

In this study, the authors proposed a phase-change model in which the simulation accuracy and the stability are enhanced by taking into account the precise physical mechanism of phase-change process at gas-liquid interface. Then, the calculation method of temperature gradient near an interface, which determines the calculation of condensation quantity, is examined to enhance the simulation accuracy. Furthermore, the superiority of developed method to conventional methods is confirmed by simulating the basic condensation problem and comparing the simulation results.