| Abstract: |
| The wave-making resistance problem consists in finding the an optimal shape for an obstacle immersed in an uniform free-surface flow, from the point of view of the drag induced by the generation of a wake. This is a classical problem in fluid mechanics, which has applications in the design of energy-efficient ships. Up to now, the few tentatives of optimisation of the obstacle relied on simplified representations of its shape, typically of small dimension, or relying on a thin body approximation. In our study, we aim to obtain optimal obstacles for the wave-making resistance in a much larger space of shapes. The numerical method we used relies on an implicit representation of the boundary of the obstacle which allows, for instance, topological changes without technical hindrances. |
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