Abstract
AbstractPre-swirl fins-based energy saving devices (ESDs) have been designed to improve the propulsive performances of twin-screw ships. To this aim, a combined BEM/RANSE method for efficient self-propulsion prediction is required. The approach is included in a framework for a design by optimization, where systematic variations of the ESD geometry have been used to explore the design space and maximize the energy-saving effect of the device. Surrogate models based on Ordinary Kriging are used too, with the aim of realizing an affordable design workflow for the very preliminary design of such devices. The results show encouraging improvements that reach promising energy-savings up to 3% at the design point and satisfactory savings also in off-design functioning conditions.
Funder
Università degli Studi di Genova
Publisher
Springer Science and Business Media LLC
Subject
Ocean Engineering,Energy Engineering and Power Technology,Water Science and Technology,Renewable Energy, Sustainability and the Environment
Reference30 articles.
1. Andersen P, Andersen SV, Bodger L, Friesch J, Kappel JJ (2000) Cavitation considerations in the design of Kappel propellers. In: NCT'50. International conference on propeller cavitation, Newcastle, UK
2. Carlton J (2007) Marine propellers and propulsion. Butterworth-Heinemann, Amsterdam
3. Eça L, Hoekstra M (2014) A procedure for the estimation of the numerical uncertainty of CFD calculations based on grid refinements studies. J Comput Phys 262:104–130
4. Esteco (2017) modeFRONTIER Users’ manual. ESTECO SpA, an italian-based sofware/CAE society
5. Forrester A, Sobester A, Keane A (2008) Engineering design via surrogate modelling: a practical guide. Wiley, Hoboken
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