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Optimal shape design of multi-element trawl-doors using local surrogate models

Abstrakt

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.

Cytowania

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Informacje szczegółowe

Kategoria:
Publikacja w czasopiśmie
Typ:
artykuł w czasopiśmie wyróżnionym w JCR
Opublikowano w:
Journal of Computational Science nr 10, strony 55 - 62,
ISSN: 1877-7503
Język:
angielski
Rok wydania:
2015
Opis bibliograficzny:
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:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1016/j.jocs.2015.01.006
Weryfikacja:
Politechnika Gdańska

wyświetlono 17 razy

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