The Force Characteristics of Surface-Piercing Fully Ventilated Dihedral Hydrofoils

摘要

Results of a theoretical and experimental investigation of the characteristics of surface-piercing, fully ventilated dihedral hydro¬foils are presented. A range of dihedral angles from 20 to 40 degrees is covered in the experimental investigation. Good agreement between experiment and theory is obtained, the theory being applicable to sur¬face-piercing, fully ventilated dihedral hydrofoils of zero sweep, taper and twist. The report includes experimental evidence and an analysis of cambered sections with partially attached flow to the upper surface.