Experimental study of disk impact onto shallow water

A problem of the impact of circular disks with a flat, convex, or concave onto a finite-depth fluid layer is experimentally studied. The influence of the small curvature of the lower surface of the body on the added mass, characteristic time of the impact on the free surface, parameters of the air cavity trapped during the impact, and type of the body impact on the bottom of the hydrodynamic test tank is examined.