Seakeeping performance of high speed displacement craft

TL;DRAbstract

This paper employs potential flow analysis to evaluate the hydrodynamic coefficients and responses of both a high speed displacement monohull and catamaran form, using three-dimensional (panel and source distribution) and two-dimensional (strip theory) methods. The predictions are compared with experimental and model test data for a variety of speeds. Predictions from a translating, pulsating source distribution are also obtained for the catamaran. In addition, the monohull is fitted with outriggers to examine the seakeeping characteristics of a trimaran. The paper investigates the heave and pitch motions of mono and multihulls in regular waves. The fluid interaction between the hulls and its effects on the responses are discussed. The shortcomings of the existing analytical predictions, with particular reference to the treatment of forward speed and standing wave formation between the hulls, are assessed and recommendations made for improved predictions.

Chat with Paper

AI Agents for this Paper