کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
485991 703344 2015 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Shape Optimization of Trawl-doors Using Variable-fidelity Models and Space Mapping
ترجمه فارسی عنوان
بهینه سازی شکل از درب های تریلر با استفاده از مدل های متغیر وفاداری و نقشه برداری فضا؟
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر علوم کامپیوتر (عمومی)
چکیده انگلیسی

Trawl-doors have a large influence on the fuel consumption of fishing vessels. Design and optimization of trawl-doors using computational models are key factors in minimizing the fuel consumption. This paper presents an efficient optimization algorithm for the design of trawl-door shapes using computational fluid dynamic models. The approach is iterative and uses variable-fidelity models and space mapping. The algorithm is applied to the design of a multi-element trawl-door, involving four design variables controlling the angle of attack and the slat position and orientation. The results demonstrate that a satisfactory design can be obtained at a cost of a few iterations of the algorithm. Compared with direct optimization of the high-fidelity model and local response surface surrogate models, the proposed approach requires 79% less computational time while, at the same time, improving the design significantly (over 12% increase in the lift-to-drag ratio).

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Procedia Computer Science - Volume 51, 2015, Pages 905-913