Abstract
Quantitative flow visualizations using Particle Tracking Velocimetry (PTV) and Particle Image Velocimetry (PIV) were performed to remove the origin of hemolysis to obtain the suitable design criteria. Particular attention was paid to the relationship between the high shear area and hemolysis. As a result, the shear velocities in the high hemolysis pump were higher than those in the low hemolysis pump near the casing wall by the results of both PTV and PIV. However, the shear velocities by PIV were half times as large as those by PTV in a current comparison.
