Development of a high speed planing trimaran with hydrofoil support

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dc.contributor.advisorHarms, T. M.
dc.contributor.advisorMigeotte, G.
dc.contributor.authorGrobler, Barenden_ZA
dc.contributor.otherUniversity of Stellenbosch. Faculty of Engineering. Dept. of Mechanical and Mechatronic Engineering.
dc.date.accessioned2008-03-27T09:49:57Zen_ZA
dc.date.accessioned2010-06-01T08:40:54Z
dc.date.available2008-03-27T09:49:57Zen_ZA
dc.date.available2010-06-01T08:40:54Z
dc.date.issued2007-12en_ZA
dc.descriptionThesis (MScEng (Mechanical and Mechatronic Engineering))--University of Stellenbosch, 2007.
dc.description.abstractThe successful use of hydrofoil systems on catamarans, such as the Hysucat, led to the development of a similar foil system for a high speed trimaran. Firstly a mathematical model was developed to calculate the equilibrium planing conditions of a planing trimaran. This was then used in the hydrodynamic design of a fully planing trimaran with a design speed of 65 kn. The mathematical model was then modified to include the effects of added hydrofoils. This model was then used to design a hydrofoil support system for the planing trimaran. Towing tank tests were then performed on a scale model of the boat, with and without the supporting hydrofoil system. This was done to verify the theoretical design and to gather resistance data, which could then be compared to other boats. The results showed a notable improvement in efficiency of the boat with the addition of foils. The conclusion was made that with the addition of a well-designed foil system, hull efficiencies similar to that expected for the Hysucat, can be attained when the foil system is added to the trimaran. As this work was focused mainly on the high-speed performance of the boat, it is not certain how the boat will perform through the speed-range. It is therefore recommended that further testing be done, to determine the performance of the boat at lower speeds.en_ZA
dc.format.extent1437133 bytesen_ZA
dc.format.mimetypeapplication/pdfen_ZA
dc.identifier.urihttp://hdl.handle.net/10019.1/2122
dc.language.isoenen_ZA
dc.publisherStellenbosch : University of Stellenbosch
dc.rights.holderUniversity of Stellenbosch
dc.subjectHydrofoilsen_ZA
dc.subjectHigh-speeden_ZA
dc.subjectDissertations -- Mechanical engineeringen
dc.subjectTheses -- Mechanical engineeringen
dc.subjectTrimaransen
dc.subjectHydrofoil boatsen
dc.subject.otherMechanical and Mechatronic Engineeringen_ZA
dc.titleDevelopment of a high speed planing trimaran with hydrofoil supporten_ZA
dc.typeThesisen_ZA
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