Journal article
Computational fluid dynamics-based multiobjective optimization of a surface combatant using a global optimization method
Journal of marine science and technology, Vol.13(2), pp.95-116
05/2008
DOI: 10.1007/s00773-007-0264-7
Abstract
The main objective of this article is to describe the development of two advanced multiobjective optimization methods based on derivative-free techniques and complex computational fluid dynamics (CFD) analysis. Alternatives for the geometry and mesh manipulation techniques are also described. Emphasis is on advanced strategies for the use of computer resource-intensive CFD solvers in the optimization process: indeed, two up-to-date free surface-fitting Reynolds-averaged Navier-Stokes equation solvers are used as analysis tools for the evaluation of the objective function and functional constraints. The two optimization methods are realized and demonstrated on a real design problem: the optimization of the entire hull form of a surface combatant, the David Taylor Model Basin—Model 5415. Realistic functional and geometrical constraints for preventing unfeasible results and to get a final meaningful design are enforced and discussed. Finally, a recently proposed verification and validation methodology is applied to assess uncertainties and errors in simulation-based optimization, based on the differences between the numerically predicted improvement of the objective function and the actual improvement measured in a dedicated experimental campaign. The optimized model demonstrates improved characteristics beyond the numerical and experimental uncertainty, confirming the validity of the simulation-based design frameworks.
Details
- Title: Subtitle
- Computational fluid dynamics-based multiobjective optimization of a surface combatant using a global optimization method
- Creators
- Yusuke Tahara - Department of Marine System Engineering Osaka Prefecture University 1-1 Gakuen-cho Osaka 599-8531 JapanDaniele Peri - Italian Ship Model Basin INSEAN Rome ItalyEmilio Campana - Italian Ship Model Basin INSEAN Rome ItalyFrederick Stern - IIHR—Hydroscience and Engineering University of Iowa Iowa USA
- Resource Type
- Journal article
- Publication Details
- Journal of marine science and technology, Vol.13(2), pp.95-116
- Publisher
- Springer Japan; Japan
- DOI
- 10.1007/s00773-007-0264-7
- ISSN
- 0948-4280
- eISSN
- 1437-8213
- Language
- English
- Date published
- 05/2008
- Academic Unit
- Mechanical Engineering
- Record Identifier
- 9984064221802771
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