In an age where sailing boats are losing their reputation of slow-moving vehicles, and where technologies are developing at explosive rhythm, the scantling criteria are deeply changing and naval architects face new challenges. Beside a literature review on sailing yacht appendages design, the state of the art of the methods for fluid-elastic phenomena prediction is presented. To face the problem of numerical modelling, an overview on Fluid-Structure Interaction (FSI) numerical computational is provided, introducing the main parameters to care about while modelling the interaction of a hydro-foil with the flow. The software capabilities are explored, reporting the main steps to follow, in order to build both solid and fluid models of a hydrofoil, and to couple them in a FSI analysis. A suitable test case has been selected, providing numerical and experimental reference for outcomes comparisons. The results are presented focusing on tolerances, relaxation factors and time discretisation effect on the solution.

FSI simulations for sailing yacht high performance appendages

D'Ubaldo O.;Ghelardi S.;Rizzo C. M.
2020-01-01

Abstract

In an age where sailing boats are losing their reputation of slow-moving vehicles, and where technologies are developing at explosive rhythm, the scantling criteria are deeply changing and naval architects face new challenges. Beside a literature review on sailing yacht appendages design, the state of the art of the methods for fluid-elastic phenomena prediction is presented. To face the problem of numerical modelling, an overview on Fluid-Structure Interaction (FSI) numerical computational is provided, introducing the main parameters to care about while modelling the interaction of a hydro-foil with the flow. The software capabilities are explored, reporting the main steps to follow, in order to build both solid and fluid models of a hydrofoil, and to couple them in a FSI analysis. A suitable test case has been selected, providing numerical and experimental reference for outcomes comparisons. The results are presented focusing on tolerances, relaxation factors and time discretisation effect on the solution.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11567/1017908
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