Study of the dynamics of submerged supple nets (applications to trawls)
Study of the dynamics of submerged supple nets (applications to trawls)
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DOI：
10.1016/s0029-8018(97)00035-8
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发表时间：
1998-07
影响因子：
5
通讯作者：
J. S. Bessonneau;D. Marichal
中科院分区：
文献类型：
--
作者：
J. S. Bessonneau;D. Marichal
提出了一种迭代方法来确定拖网等水下柔网的动态行为。柔性结构由一组刚性杆建模。刚性单元之间的连接点被假定为旋转连杆。施加到每个杆上的流体动力是通过结合并推广兰德韦伯和莫里森假设来确定的。所有时间导数算子都通过有限差分格式来逼近。给出了特定拖网动态行为的一些例子，并与水槽观察进行了定性比较。
An iterative method is presented for determining the dynamic behaviour of submerged supple nets such as trawls. The flexible structure is modelised by a set of rigid bars. The junction points between the rigid elements are assumed to be rotoı̈dal links. The hydrodynamic forces, applied to each bar, are determined by combining and generalizing the Landweber and Morison hypothesis. All temporal derivative operators are approached by finite difference schemes. Some examples of the dynamic behaviour of a particular trawl are presented and qualitatively compared with flume tank observations.