Foiling future and the Wageningen Φ-series JIP proposal
AuthorsLuigi Francesco Minerva, Francisco Miguel Montero
Conference/JournalMARIN Report 128
Date21 Jan 2020
MARIN’s main research objective is to develop new concepts for foiling vessels (possibly combined with a foil integrated electric propulsion system), advanced controls and deforming lifting foils. We carried out several test campaigns; to highligth the feasibility of foiling solutions for heavier cargies and to gain undestanding of the implications of the control system choices (2018) , and to determine the lifting characteristic in unsteady conditions, both in cavitating and non-cavitating conditions (2019). The research programmes have emphasised the need for detailed knowledge about foil characteristics and their effect on the safe, comfortable and efficient operation of foiling craft at sea in unsteady conditions. That is why we have proposed a Joint Industry Project to provide insight into the performance and dynamic control in unsteady conditions by the development of a systematic foil series, named Φ-series.
Luigi Francesco Minerva
Project Manager Ships
Recent test campaigns in unsteady conditions
In 2018, a fully foiling, self-propelled craft was tested in MARIN’s Seakeeping and Manoeuvring Basin. In Figure an overview of the setup and model sailing in waves is presented. The test campaign was aimed at highlighting the feasibility of foiling solutions for heavier cargoes and to gain an understanding of the implications of the control system choices. The project also highlighted the importance of a more focused study to better understand the foil dynamics in unsteady conditions such as a foil operating in a seaway with the occurrence of cavitation; where current calculations tools have limitations but they are still very relevant from a safety point of view.
Concept craft in full dynamically controlled foiling mode
MARIN - FOIL JIP
Concept craft in full dynamically controlled foiling mode (self-propelled) tested in waves, and cavitation observations on hydrofoil oscillating in pitch with cavitation.