Professor Colonius's computational flow physics group, investigates a variety of flow phenomena using numerical simulations. Simulations provide key insights into turbulence, instabilites, sources of sound, shock dynamics, and interactions with a disperse phase such as cavitaiton bubblesor droplets. They are also interested in the application of control theory in fluid mechanics, and reduced-order modeling techniques for control. Applications include jet noise, flow-energy harvesting, shockwave lithotripsy, and active control of unsteady aerodynamics.