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。
In this paper, we designed 4-panel trawl based on 6-panel 1029 kW hydrodynamic performance of 4-panel by tank experiment. The results showed trawl, and analyzed the 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 m^2/kN and the energy consumption coefficient was 1.20 kW. h/10^4 m^3.
出处
《海洋渔业》
CSCD
2007年第2期159-165,共7页
Marine Fisheries
基金
中国水产总公司发展基金项目(2004-06)
关键词
四片式
拖网
水动力性能
4-panel
trawl net
hydrodynamic performance
