FREEPAN solution for a trimaran
FREEPAN solution for a monohull yacht showing
combined dynamic and hydrostatic pressures on keel
FREEPAN solution for a fully submerged body
The free surface module (FREEPAN) is a powerful enhancement of NEWPAN
that provides a capability to predict the unsteady, fully nonlinear response
of a free surface to the unsteady motion of a floating
or submerged body. The body, modelled via
GEMS, can perform arbitrary
motions in the time domain, or simply pursue a steady motion.
It can comprise lifitng as well as nonlifting components.
The free surface module predicts both the nonlinear free surface shape
and motion and the effects of the free surface on the body.
It has been used to study:
- wave resistance on sailing vessels
- the interaction between lifting keels and the free surface for yachts at heel
- yacht keels and bulbs, using the wing design capability of NEWPAN
- the response of the free surface to the unsteady motion of a submerged body
Although the free-surface module is an important tool for hydrodynamic
studies by clients and consultancy within the company, other studies using
semi-empirical/analytical techniques can also be undertaken.
See Marine Solutions for further details.