方型组合礁体流场效应及水动力分析
Natural Science Journal of Hainan University（2022）
Abstract
本文采用CFD(计算流体动力学)软件模拟了布设间距对组合方型人工鱼礁流场的影响,结果表明:双礁和三礁体在不同布设情况下对礁后的背部涡流场影响较大,当组合礁体纵向布设间距为1倍礁长时,方型鱼礁的涡量发育完全,且涡量的分布结构较为稳定,但当布设间距增至2倍礁长时,涡量大小及分布范围明显减小,且随着布设间距的增大,组合礁体的最大上升流速与来流速度的比值均呈现先增大后减小的趋势,上升流最大抬升高度与鱼礁高度的比值与单礁结构接近,均为2.6左右.本研究揭示了礁体上升流和礁后涡流场的分布规律,可对人工鱼礁周围的营养物质输送和鱼类的聚集规律提供指导.
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