Effect of deflector curvature on hydrodynamic performances of a double-slotted cambered otter-board
The effect of deflector curvature on hydrodynamic performances of a double-slotted cambered otter-board was investigated using engineering models in a wind tunnel. Four different curvature (0.06,0.09, 0.12 and 0.15) were evaluated at a wind speed of 28 m/s. Parameters measured included: drag coeffic...
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doaj-50afa44603914695b02680c252c27ebf2021-04-02T10:41:11ZengEDP SciencesE3S Web of Conferences2267-12422018-01-01380304910.1051/e3sconf/20183803049e3sconf_icemee2018_03049Effect of deflector curvature on hydrodynamic performances of a double-slotted cambered otter-boardWANG LeiWang Lu MinShi Jian GaoYu Wen WenQi Guang RuiZhang XunZhang Rong JunZhang Tian ShuThe effect of deflector curvature on hydrodynamic performances of a double-slotted cambered otter-board was investigated using engineering models in a wind tunnel. Four different curvature (0.06,0.09, 0.12 and 0.15) were evaluated at a wind speed of 28 m/s. Parameters measured included: drag coefficient Cx, lift coefficient Cy, pitch moment coefficient Cm, center of pressure coefficient Cp , over a range of angle of attack (0° to 70°). These coefficients were used in analyzing the differences in the performance among the four otter-board models. Results showed that the maximum lift coefficient Cy of the otter-board model with the curvature (0.06) of two deflectors was highest (2.020 at °=55°). The maximum Cy/Cx of the otter-board with the curvature (0.12) of two deflectors was highest (3.655 at °=22.5°). A comparative analysis of Cm and Cp showed that the stability of otter-board model with the curvature (0.12) of two deflectors is better in pitch, and the stability of otter-board model with the curvature (0.06) of two deflectors is better in roll. The findings of this study can offer useful reference data for the structural optimization of otter-boards for trawling.https://doi.org/10.1051/e3sconf/20183803049 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
WANG Lei Wang Lu Min Shi Jian Gao Yu Wen Wen Qi Guang Rui Zhang Xun Zhang Rong Jun Zhang Tian Shu |
spellingShingle |
WANG Lei Wang Lu Min Shi Jian Gao Yu Wen Wen Qi Guang Rui Zhang Xun Zhang Rong Jun Zhang Tian Shu Effect of deflector curvature on hydrodynamic performances of a double-slotted cambered otter-board E3S Web of Conferences |
author_facet |
WANG Lei Wang Lu Min Shi Jian Gao Yu Wen Wen Qi Guang Rui Zhang Xun Zhang Rong Jun Zhang Tian Shu |
author_sort |
WANG Lei |
title |
Effect of deflector curvature on hydrodynamic performances of a double-slotted cambered otter-board |
title_short |
Effect of deflector curvature on hydrodynamic performances of a double-slotted cambered otter-board |
title_full |
Effect of deflector curvature on hydrodynamic performances of a double-slotted cambered otter-board |
title_fullStr |
Effect of deflector curvature on hydrodynamic performances of a double-slotted cambered otter-board |
title_full_unstemmed |
Effect of deflector curvature on hydrodynamic performances of a double-slotted cambered otter-board |
title_sort |
effect of deflector curvature on hydrodynamic performances of a double-slotted cambered otter-board |
publisher |
EDP Sciences |
series |
E3S Web of Conferences |
issn |
2267-1242 |
publishDate |
2018-01-01 |
description |
The effect of deflector curvature on hydrodynamic performances of a double-slotted cambered otter-board was investigated using engineering models in a wind tunnel. Four different curvature (0.06,0.09, 0.12 and 0.15) were evaluated at a wind speed of 28 m/s. Parameters measured included: drag coefficient Cx, lift coefficient Cy, pitch moment coefficient Cm, center of pressure coefficient Cp , over a range of angle of attack (0° to 70°). These coefficients were used in analyzing the differences in the performance among the four otter-board models. Results showed that the maximum lift coefficient Cy of the otter-board model with the curvature (0.06) of two deflectors was highest (2.020 at °=55°). The maximum Cy/Cx of the otter-board with the curvature (0.12) of two deflectors was highest (3.655 at °=22.5°). A comparative analysis of Cm and Cp showed that the stability of otter-board model with the curvature (0.12) of two deflectors is better in pitch, and the stability of otter-board model with the curvature (0.06) of two deflectors is better in roll. The findings of this study can offer useful reference data for the structural optimization of otter-boards for trawling. |
url |
https://doi.org/10.1051/e3sconf/20183803049 |
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