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Abstract
Trawl-doors have a large influence on the fuel consumption of fishing vessels. Design and optimiza-tion of trawl-doors using computational models are a key factor in minimizing the fuel consump-tion. This paper presents an optimization algorithm for the shape design of trawl-door shapes using computational fluid dynamic (CFD) models. Accurate CFD models are computationally expensive. Therefore, the direct use of traditional optimization algorithms, which often require a large number of evaluations, may be prohibitive. The proposed approach is iterative and uses low-order local response surface approximation models of the expensive CFD model, constructed in each iteration, to reduce the number of evaluations. The algorithm is applied to the design of a multi-element trawl-doors, involving up to four design variables controlling the angle of attack and the slat and flap position and orientation. The results show that a satisfactory design can be obtained at the cost of a few iterations of the algorithm.
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Authors (3)
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Leifur Leifsson
- Iowa State University Aerospace Engineering
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Elvar Hermannsson
- Reykjavik University School of Science and Engineering
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Details
- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
Journal of Computational Science
no. 10,
pages 55 - 62,
ISSN: 1877-7503 - Language:
- English
- Publication year:
- 2015
- Bibliographic description:
- Leifsson L., Hermannsson E., Kozieł S.: Optimal shape design of multi-element trawl-doors using local surrogate models// Journal of Computational Science. -Vol. 10, (2015), s.55-62
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.jocs.2015.01.006
- Verified by:
- Gdańsk University of Technology
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