Cavitation occurs in a variety of hydrodynamic applications. These applications include, but are not limited to, hydraulic pumps and motors, hydrofoils, propellors and spillways. For many applications, cavitation has negative effects. Many manufacturers take great efforts to reduce or eliminate cavitation. Cavitation can alter the performance of a hydraulic system (reduction in lift and increase in drag for a hydrofoil, decrease in turbomachinery efficiency, reduced capacity to evacuate water in spillways, unwanted noise, etc.). However, cavitation has been advantageously employed in certain other applications, such as the homogenization of milk, cleaning of surfaces by cavitating jets and drag reduction by means of supercavitation. Our group focuses on the investigation of fundamental flow physics involved in cavitation phenomenon and bubbly flows through novel flow imaging and measurement techniques.