Abstract
The numerical simulation of hydrodynamic performance of trimarans has attracted a significant attention recently. A series of added resistance model tests for a trimaran model at different speeds and regular waves are carried out. The variation trend of trimaran added resistance with wavelength to ship length ratio is analyzed for Fn=0.353 and Fn=0.471 under different outrigger layout. On these bases, the 2.5D method is applied to calculate the added resistance of the trimaran model in the experiment under various conditions and compare with the experimental results. By comparing with the experimental results, the scope of application of the 2.5D method in added resistance prediction is verified.
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