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中文摘要：
网板是单拖网渔业中实现网具水平扩张的重要渔具构件，网板水动力性能的优劣直接关系到拖网的渔获效率。综述了国内外矩形平面网板、立式曲面网板、立式V型曲面网板和双翼型网板的相关研究进展，分析了这4种网板类型的各自水动力性能，总结了影响其水动力性能的几种主要因素，旨在为旧式网板的改良优化和新型网板的开发研制提供参考。同时，还分别从机翼理论、模型（实物）实验和CFD数值模拟技术3个角度阐明我国网板研究存在的问题和未来发展方向。
英文摘要：
Otter board is one of the most important component fishing gears for expanding the mouth of trawl net in horizontal direction. The hydrodynamic characteristic of otter board has a directly effect on fish efficiency. This paper deals with the research on hydrodynamic characteristics of 4 kinds of otter board, rectangular flat, vertical cambered plate, vertical v-shape cambered plate and biplane-type otter board. To improve and optimize the otter boards, the paper summarizes several acting factors of hydrodynamic characteristics. And it clarifies the problems and future development of otter boards in our country from three aspects including airfoil theory, model test and computational fluid dynamics, to clarify the problems and fahure developments of otter board in our country.
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