FN Archimer Export Format PT J TI Cable length optimization for trawl fuel consumption reduction BT AF KHALED, Ramez PRIOUR, Daniel BILLARD, Jean-Yves AS 1:1;2:1;3:2; FF 1:PDG-RBE-STH-LTH;2:PDG-REM-RDT-LCSM;3:; C1 IFREMER, Hydrodynam & Metocean Serv, F-29280 Plouzane, France. Ecole Navale, IRENAV, F-29240 Brest, France. C2 IFREMER, FRANCE IRENAV, FRANCE SI BREST SE PDG-RBE-STH-LTH PDG-REM-RDT-LCSM IN WOS Ifremer jusqu'en 2018 copubli-france IF 1.337 TC 14 UR https://archimer.ifremer.fr/doc/00130/24106/22857.pdf LA English DT Article DE ;Bottom trawl;Modeling;Optimization;Fuel consumption;Drag;Swept area;Mouth surface;Fish distribution AB A numerical method for optimization of the cable lengths in trawls with respect to the ratio between the estimated trawl drag and the predicted catch efficiency is developed and applied. The trawl cables of interest are warps, bridles, headline and footrope. The optimization algorithm applies an ordered sequential process changing one cable length at the time. It is assumed in the predictions that the catch efficiency of the trawl is proportional with the trawl mouth area. In a case study optimizing a bottom trawl used on a research vessel by applying the new method it is predicted that it would be possible to reduce the ratio between trawl drag and catch efficiency by up to 46% by optimizing the cable lengths. Thus this would enable a considerable reduction in fuel consumption to catch a specific amount of fish. Moreover, we predict an increase in the value of the trawl mouth area leading to better catching efficiency without increase in otter door drag. (C) 2012 Elsevier Ltd. All rights reserved. PY 2013 PD JAN SO Ocean Engineering SN 0029-8018 PU Pergamon-elsevier Science Ltd VL 58 UT 000315665100015 BP 167 EP 179 DI 10.1016/j.oceaneng.2012.10.001 ID 24106 ER EF