Abstract
Bubbly flow is a complicated flow because a bubble is deformable and the bubble-bubble and interactions work in local area including a lot of bubbles. Such flow occurring turbulence in liquid phase by each bubble is called "pseudo turbulence". A PIV is most effective to measure bubbly flow because of multidimensional measurement. Recently Dynamic PIV system consisted of high-speed camera and high-repetition laser is developed, it is possible to capture images with high resolution and time series. In this study simultaneous measurement of bubble and liquid phase is carried out using Dynamic PIV system with a high-speed camera and a double-pulse laser and an infrared laser.
