Numerical Investigation on the Hydrodynamic Performance of High-Speed Displacement Vessel With Transom Hull Vane

A numerical analysis of the hydrodynamic performance of high-speed displacement vessels with and without Hull Vane (HV) is presented in the paper. A Hull Vane is an energy-saving device that is transversely fastened to the vessel’s transom bottom. The pressure differential is the primary reason for the vessel’s decreased pressure drag and trim. The Finite Volume approach employing a standard mesh was used to analyze the hull model utilizing a Hull Vane with various spans. Heave and pitch are the two degrees of freedom taken into account. The high-speed displacement vessel with and without a Hull Vane is subjected to model tests in calm water in the Department of Ocean Engineering’s current towing tank facility at the Indian Institute of Technology, Madras. The effects of span (Length of the HV has been discussed in this paper. The vessel’s performance is significantly influenced by the length of the Hull Vane and limited condition for span has been obtained. The study demonstrates a greater trim reduction due to the lift force produced by the hull vane at the stern of the vessel. The overall resistance coefficient has been decreased to 7%.