Abstract
The wave resistance of multiple pressure distributions (cushions) is examined. The analytical formulation is based on a linear theory involving the notion of interference resistance as developed in Yeung et al. (2004). Research work previously carried out by Yeung and Wan (2008) and Yeung et al. (2008) is further developed to obtain the equations of wave resistance. Wave resistance of various configurations of dual cushions and tri-cushions are analyzed using the computational code developed at the Computational Marine Mechanics Lab (CMML) at the University of California at Berkeley. The results of the analysis show that there is a significant reduction in the wave resistance of the multiple pressure cushion craft compared to a single-cushion craft of identical displacement. With the aid of the expression for interference resistance between two cushions developed here, the wave resistance of a dual-SES ship is analyzed and presented.
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