Simulation of Net Structures Hydrodynamic Fields
Simulation of Net Structures Hydrodynamic Fields
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DOI：
10.5772/5978
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发表时间：
2008-06
期刊：
影响因子：
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通讯作者：
L. Meyler
中科院分区：
文献类型：
--
作者：
L. Meyler
工业化渔业的重要问题是渔具的可捕性和选择性。这些特性取决于齿轮的各种参数，这些齿轮通常具有高度水弹性的网状结构，而没有预定义的形状。这种形状是在运动中或在流动作用下形成的。弯曲的网状结构通常是高度三维的。净结构体积变形的研究是复杂的，需要处理的结构特性，如灵活性，不连续性，各向异性和不均匀的表面形状。渔网结构，特别是拖网及其尾部网囊的水动力学问题，长期以来一直受到科学家的关注。图1示出了拖网系统方案。
Important problems in industrial fishery are catchability and selectivity of fishing gears. These characteristics depend on various parameters of gears that usually have a highly hydroelastic net structure without a predefined shape. The shape forms in motion or under flow action. Curved net structures are usually highly three-dimensional. The study of the net structure volume deformation is complex, requiring treatment of structural properties like flexibility, discontinuity, anisotropy and uneven surface shapes. Hydrodynamics of fishing net structures, in particular, a fishing trawl and its rear part – cod-end, attracts an attention of scientists for a long time. Fig. 1 shows a trawl system scheme.