IS08 - Planing Hull Hydrodynamics
The focus of this session is on high speed planing crafts hydrodynamics in calm water
and in waves. During last years the computational fluid dynamics (CFD) technique has
also rapidly developed as a novel tool to address calm water resistance prediction and
study of complex phenomena characteristic for the planing regime such as whisker spray,
air trapping and pressure area wetted surface when hull has one or more transversal steps.
However, due to the complexity of interactions between water waves, the presence of free
surface and forward speed, the problems of wave-induced ship motions and loads are still
far from being satisfactorily addressed, especially for problems involving high forward
speed, instantaneous wetted surface, irregular sea waves, and strong nonlinear slamming
loads.CFD modelling of planing hulls requires expert users to decide on different moving
mesh techniques (overset/chimera and morphing grid), turbulence models, domain
boundaries and convergence criteria.
The contributions addressing novel numerical and experimental tools applied to the
relevant problems for “energy efficiency of high added values ships” are especially