【摘要】 以1029 kW六片式拖网为母型,设计四片式拖网,并进行水槽模型试验,分析其水动力性能。研究结果表明:通过改进上下纲结构形式、调整上下纲比例和背侧网比例,四片式拖网的水动力性能得到了较大的提高。当拖速为3.5 kn时,四片式拖网的阻力仅为44.57 kN,网口高度达5.9 m,水动力性能系数为2.32 m2/kN,能耗系数为1.20 kW.h/104m3。更多还原

【Abstract】 In this paper,we designed 4-panel trawl based on 6panel 1029 kW trawl,and analyzed the hydrodynamic performance of 4-panel by tank experiment.The results showed that the hydrodynamic performance of the net had been greatly improved if the configuration of head line & ground rope and the rate of head line & ground rope and the rate of upper panel & side panel were reasonably changed.When the tow speed was 3.5kn,the resistance of 4-panel trawl was 44.57 kN,the vertical net opening was 5.9 m,the hydrodynamic coefficient was 2.32 m2/kN and the energy consumption coefficient was 1.20 kW.h/104 m3.更多还原