Performance prediction of a slender half-displacement passenger craft for inland navigation

Abstract

The design of a small passenger craft for Venice is presented. The paper deals with hydrodynamic aspects mainly concerning resistance prediction in shallow water for subcritical, critical and supercritical regimes. Open Literature usually provides methods for the subcritical regime only. Here, a procedure for the estimation of added resistance in subcritical, critical and supercritical regimes is presented within the slender body approximation. The developed procedure is suitable to be used in the early design stage to predict a preliminary speed-power curve. A test case based on the designed halfdisplacement craft is thoroughly exposed.