Hydrodynamic design optimization of trawl-door shapes with local surrogate models
2013 (English)In: SIMULTECH 2013: Proceedings of the 3rd International Conference on Simulation and Modeling Methodologies, Technologies and Applications, 2013, 751-756 p.Conference paper (Refereed)
Trawl-doors have a large influence on the fuel consumption of fishing vessels. Design and optimization of trawl-doors using computational models are a key factor in minimizing the fuel consumption. 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 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 two-element trawl-door (slat and airfoil), involving four design variables controlling the angle of attack and the slat position and orientation. The results show that a satisfactory design can be obtained at the cost of a few iterations of the algorithm.
Place, publisher, year, edition, pages
2013. 751-756 p.
, SIMULTECH 2013 - Proceedings of the 3rd International Conference on Simulation and Modeling Methodologies, Technologies and Applications
CFD, Fuel Efficiency, Hydrodynamics, Optimization, Trawl-door, Computational model, Design and optimization, Design variables, Hydrodynamic design, Optimization algorithms, Position and orientations, Algorithms, Computational fluid dynamics, Design, Fisheries, Fuel additives, Iterative methods
Engineering and Technology
IdentifiersURN: urn:nbn:se:kth:diva-139853ScopusID: 2-s2.0-84888412575ISBN: 9789898565693OAI: oai:DiVA.org:kth-139853DiVA: diva2:687810
3rd International Conference on Simulation and Modeling Methodologies, Technologies and Applications, SIMULTECH 2013; Reykjavik, Iceland, 29-31 July 2013
QC 201401152014-01-152014-01-152014-01-23Bibliographically approved