Study on the boiling mechanism under the high pressure region, 2; Bubble growth process on visualized boiling images with semantic segmentation algorism

Furuya, Masahiro*; Ono, Ayako; Yoshida, Hiroyuki

no journal, , 

The establishment of the evaluation method of the critical heat flux for light water reactors is needed. However, the boiling phenomena under high pressure remain to be clarified. The bubble growth process was investigated with a time-series of the identified bubbles on the basis of the developed feature extraction method for the video-recoded frames of boiling bubbles on the heat transfer surface under high pressure and temperature. The applied semantic segmentation algorism is known as a proven machine learning technology for an autonomous driving system as well.