A Surface Remeshing for Floating-Like Bodies with a Moving Free Surface

Abstract

A surface remeshing, of Lagrangian type, for seakeeping-like problems is outlined. For this, an initial finite element like mesh is considered for the hydrostatic weted surface of a floating body. The remeshing is done as a function of the instantaneous position for the intersection curve between the moving free surface and the rigid body surface. The node displacements on the body surface, is a non-lineal restriction
of the numerical problem. For solving, an pseudcrelastic displacement strategy is introduced, in conjunction with a Lagrangian multipliers technique.