Twenty-First Symposium on Naval Hydrodynamics : wave-induced ship motions and loads, frontier experimental techniques, wake dynamics, viscous ship hydrodynamics, water entry, wave hydrodynamics/stratified flow, bluff body hydrodynamics, hydrodynamics in ship design, shallow water hydrodynamics, cavitation and bubbly flows, propulsor hydrodynamics/hydroacoustics, fluid dynamics in the naval context, CFD validation / / sponsored jointly by Office of Naval Research ; Norwegian University of Science and Technology, Trondheim, Norway ; Naval Studies Board, Commission on Physical Sciences, Mathematics, and Applications, National Research Council.