Dynamic of cavitation bubble near a curved free surface

Supervisor :  Dr. Mohamed Farhat
Assistant :  Marc Tinguely
Theme :  Cavitation

In this experimental work, we intend to investigate the dynamic of a laser-induced bubble near a curved free surface. To this end, a cylindrical reservoir filled with water will be put in rotational motion about its axis to produce a parabolic free surface, whose curvature is related to the rotation speed. A transparent window, located in the bottom of the reservoir will be used to focus a pulsed laser beam beneath the free surface. The growth and collapse of the vapor bubble as well as subsequent jetting will be analyzed by a high speed camera. The focus will be put on the measurement of the velocity and height of the outer jet (splash) with respect to the curvature of the interface.