Abstract
An image velocimetry technique for measuring fluid motion of liquid-solid flow with high particle density is developed and presented. The new technique, which obtains velocities and directions by connecting path lines of tracers in sequence images captured by high speed cameras, is classified into a kind of particle tracking velocimetry. Detail of the algorithm of the developed image velocimetry, called path line connecting velocimetry (PLCV), is presented. Some results of measuring liquid-solid flows induced by dispersion phase with high concentration are presented.
