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Numerical simulation of the flow around fishing plane nets using the porous media model

机译：多孔介质模型对渔网绕流的数值模拟

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摘要

A three-dimensional (3D) numerical model is established to simulate the flow field around fishing plane nets in a current. The realizable k-ε turbulence model was chosen to describe the flow, and the governing equations are solved by using the finite volume method. In this model, the net is modeled using the porous media model. The unknown porous coefficients are determined from the hydro-dynamic forces on the net and from the flow velocities and the attack angles using the least squares method. In order to validate the numerical model, the numerical results were compared with the data obtained from two physical model tests. The comparisons show that the numerical results are in good agreement with the experimental data. This numerical model is applicable for the simulation of the flow field around a fishing net. Using the proposed method, this paper presents the flow field around a plane net with different plane net inclination angles, plane net heights, spacing distances between two plane nets and plane net numbers. This study provides information about the flow field around the fishing net cage.
机译：建立了三维（3D）数值模型，以模拟当前电流中渔网周围的流场。选择可实现的k-ε湍流模型来描述流动，并通过有限体积法求解控制方程。在此模型中，使用多孔介质模型对网络进行建模。未知的多孔系数是使用最小二乘法从网上的水动力以及流速和迎角确定的。为了验证数值模型，将数值结果与两次物理模型测试获得的数据进行了比较。比较表明，数值结果与实验数据吻合良好。该数值模型适用于模拟渔网周围的流场。利用所提出的方法，本文给出了具有不同平面网倾角，平面网高度，两个平面网之间的间距和平面网数的平面网周围的流场。这项研究提供了有关渔网笼周围流场的信息。

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  • 来源
    《Ocean Engineering》 |2013年第1期|25-37|共13页
  • 作者

    Yun-Peng Zhao; Chun-Wei Bi; Guo-Hai Dong; Fu-Kun Gui; Yong Cui; Chang-Tao Guan; Tiao-Jian Xu;

  • 作者单位

    State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China;

    State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China;

    State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China;

    Marine Science and Technology School, Zhejiang Ocean University, Zhoushan 316000, China;

    Qingdao Key Laboratory for Marine Fish Breeding and Biotechnology, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China;

    Qingdao Key Laboratory for Marine Fish Breeding and Biotechnology, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China;

    Qingdao Key Laboratory for Marine Fish Breeding and Biotechnology, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    fishing plane net; flow field; porous media model; numerical simulation;

    机译：渔网流场多孔介质模型数值模拟;

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