Abstract: This paper considers the lift forces acting on a pipe with or without a small gap between the pipe and the seabed. From simple physical considerations, it is explained why the potential theory that predicts a downward lift ...

Abstract: Oscillatory flow over wave ripples is described by use of a discrete vortex model using the “cloud in cell” concept. The distribution of suspended sediment over the ripple bed is simulated by a Lagrangian model, following ...

Abstract: A numerical model that simulates the sediment transport due to plunging breaking waves has been developed. A plunging breaker is simulated by superimposing a jet on a nonbreaking wave. The hydrodynamics are described by ...