A Method of Minimizing Wave Resistance for Hull Forms of Middle-Speed Ships

Abstract

Wave resistance is composed of linear and nonlinear components, and the nonlinear component must be taken into account for the evaluation of wave resistance of middle-speed ships. In this paper two methods of estimating wave resistance including the nonlinear component are presented, i.e., the method of characteristics and the method of the sum of wave height squared. The availability of the methods are examined by experiments with three kinds of series ship models, and the latter method that makes use of the wave profile near hull surfaces turns out to be generally successful.