Low-aspect ratio appendages for wind-assisted ships
Low-aspect ratio appendages for wind-assisted ships
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风力辅助船舶的小展弦比附件
DOI：
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发表时间：
2021
影响因子：
2.6
通讯作者：
R. Huijsmans
中科院分区：
文献类型：
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作者：
N. van der Kolk;I. Akkerman;J. Keuning;R. Huijsmans
商业船舶的风力推进已被确定为海运业能源转型的关键组成部分。航行混合动力船将以余地（漂移）角度运行，以产生称为侧力的侧向力，以便在航行时稳定运行。本文介绍了装有舭龙骨附件的船舶航行性能的实验结果。测试了附属物高度、长度和位置的系统变化，包括几种特殊情况（多个舭龙骨）。附件类型被证明可以减轻风力辅助商船特有的强烈“不稳定”偏航力矩，并促进非线性侧力分量。利用舭龙骨的工作原理——促进流动分离——可以指定船舶涡尾流成分的分离位置，以提高船舶的航行性能。
Wind propulsion for commercial ships has been identified as a key component in the energy transition for the maritime industry. The sailing hybrid ship will operate with leeway (drift) angles to produce a lateral force known as sideforce, for steady operation under sail. In this paper, experimental results for the sailing performance of ships fitted with bilge keel appendages are presented. Systematic variations in appendage height, length, and position were tested, including several special cases (multiple bilge keels). The appendage typology is shown to mitigate the strong ‘destabilizing’ yaw moment that is characteristic of wind-assisted commercial vessels and to promote the non-linear sideforce component. The working principal for bilge keels—promotion of flow separation—can be employed to specify the separation location for components of the vessel vortex wake to improve the sailing performance of the ship.