In spring 2006, Sierd de Vries and I were contacted by Professor Stive about an Australian surfboard manufacturer, Greg Webber, searching assistance in the development of a new invention; a circular pool with surfable waves generated by ship-like hulls. Soon the contact was established and it turned out to be an interesting research project. The results of research are documented in two theses....

A ship moving steadily forward in shallow water of constant depth h is usually subject to downward forces and hence squat, which is a potentially dangerous sinkage or increase in draft. Sinkage increases with ship speed, until it reaches a maximum at just below the critical speed p gh. Here we use both a linear transcritical shallow-water equation and a fully dispersive Ž nite-depth theory to d...

Physical concept modeling and pre-manufacturing prototyping of ship hulls are becoming more and more important due to the strong need for better quality ships, for optimization of the global performance, and for involving the customers in the development process. Physical models are typically scale models, which are used during and after design for various purposes such as shape presentation, a...

Surface reconstruction from sets of cross-sectional data is important in a variety of applications. The problem of generating a ship hull surface from non-regular cross-sectional curves is addressed. Generating non-uniform rational B-splines (NURBS) surfaces that represent cross-sectional curves is a challenge, since the number of control points is growing due to the non-avoidable process of ha...

A multidisciplinary design optimization scheme for ships has been developed for use in an integrated ship design environment. Although the system was designed with the intention of using analysis techniques based on first principles, the containership design examples presented in this paper make use of parametric analysis modules developed to examine problem formulation issues prior to the avai...

Hull form optimization from a hydrodynamic performance point of view is an important aspect of ship design. This study presents a computational method to estimate the ship seakeeping in regular head wave. In the optimization process the Genetic Algorithm (GA) is linked to the computational method to obtain an optimum hull form by taking into account the displacement as design constrain...