Quantification of gas-entrainment using dynamic PIV

Takeyama, Kojiro*; Okamoto, Koji*; Ishikawa, Masaaki*; Kamide, Hideki

Proceedings of 6th International Symposium on Particle Image Velocimetry (CD-ROM), 7 Pages, 2005/09

The new visibility method of measurement was developed for gas-entrainment from liquid surface. The vortex is generated unsteadily and it exists less than 0.3. Dynamic PIV is carried out for this short time phenomenon using pulse laser and high-speed camera. In this study, the distribution of downward velocities and the value of circulation are obtained with high accuracy using galvano-mirror.