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鱼道能够帮助恢复鱼类和其它水生生物物种在河流中自由洄游,能够减缓大坝阻隔的影响。鱼道的设计可以使用数学模拟的方法进行研究,基于仿真软件A NSYS强大的计算功能和前后处理能力,基于A NSYS软件FLUENT模块综合三维紊流数学模型,对长沙鱼道推荐方案鱼道池室进行计算,鱼道最大流量为1.21 m~3/s,满足鱼类洄游条件;进鱼口流速大于0.2 m/s,达到鱼类的感应流速,集鱼渠内流向明确,稳定,无倒流,满足设计要求。
Fishways can help restore the free migration of fish and other aquatic species in the river and mitigate the effects of dam blockage. The design of fish tracks can be studied by using mathematical simulation method. Based on the powerful calculation function of A NSYS and the ability of pre- and post-processing, a three-dimensional turbulence mathematical model of FLUENT module based on A NSYS software is designed. The maximum flow rate of the fishway was 1.21 m 3 / s, which satisfied the conditions of fish migration. The flow velocity of the fish entering the fish was more than 0.2 m / s, reaching the induced flow rate of the fish. The flow direction of the fish was clear and stable, Meet the design requirements.