On the fluid dynamic design and optimization of sailing yachts hull and appendages using a complete open source framework
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Inclou dades d'ús des de 2022
Cita com:
hdl:2117/332192
Tipus de documentText en actes de congrés
Data publicació2015
EditorCIMNE
Condicions d'accésAccés obert
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Abstract
Naval Architecture preserves both the sketching conceptualism and the engi-
neering pragmatism. As a matter of fact, the heuristic approach behind a sailing yacht
technology comes from a tangible amount of experience and knowledge. In this respect, Design and
Analysis of Computer Experiments (DACE) represents an efficient tool for improving the
overall knowledge on parameter dependency, while a Multi Objective Op- timization easily reveal
the best choice according to specific project constraints. In this work we propose a fully
automated and parametric simulation framework, entirely based on Open Source technology. From
an engineering and practical point of view, it is im- portant to understand the real
applicability of these tools on complex engineering tasks, such as evaluating the aero- and
hydro-dynamic performance of sailing yachts. Due to its reliability, scalability and cost
effectiveness, the use of a simulation and optimization framework based on Open Source
software represents an attractive option for engineers and designers looking for the best
return-of-investment. In order to create the parametric geometry we use SALOME and OpenVSP,
while mesh generation and fluid dynamics simulation are based on OpenFOAM technology. The
DACE optimization loop and the meta-models construction is done using DAKOTA. Finally, data
analytics is done us- ing Python and JavaScript languages, allowing an interactive
selections of data regions and/or single point in the design space. Results are shown in terms
of Matrix Scatter Plot, Pearson’s Coefficient Correlation, Coordinates Plot and Pareto Frontier.
As examples of possible applications, we present the optimization framework applied to a
dagger-board,
a bulb keel, a rigid sail and a sailing yacht hull.
CitacióBailardi, G.; Guerrero, J.E.; Natali, D. On the fluid dynamic design and optimization of sailing yachts hull and appendages using a complete open source framework. A: MARINE VI. "MARINE VI : proceedings of the VI International Conference on Computational Methods in Marine Engineering". CIMNE, 2015, p. 188-199. ISBN 978-84-943928-6-3.
ISBN978-84-943928-6-3
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Marine-2015-14_ON THE FLUID DYNAMIC.pdf | 5,359Mb | Visualitza/Obre |