Hydraulics and swimming behavior of schizothorax prenanti in vertical slot fishways
作者机构：State Key Laboratory of Hydraulics and Mountain River EngineeringSichuan UniversityChengdu 610065China College of Water Conservancy and Hydropower EngineeringSichuan Agricultural UniversityYaan 625014China
出 版 物：《Journal of Hydrodynamics》 (水动力学研究与进展B辑（英文版）)
年 卷 期：2019年第31卷第1期
页 面：169-176页
核心收录：
学科分类：08[工学] 0801[工学-力学（可授工学、理学学位）]
基 金：the National key R&D Program of China (Grant No.2016YFC0502207) the National Natural Science Foundation of China (Grant No.51779162)
主 题：Hydraulics swimming behavior vertical slot fishways burst-coast energy dissipation
摘 要：This paper presents a novel experiment for the correlation between the hydraulics and the swimming behavior of Schizothorax prenanti,a rare species of fish in southwest China,in passing a vertical slot *** an acoustic Doppler velocimeter,the velocities of a physical model in the equidimension fishway in the Shaping II power station are *** hydraulic parameters include the hydraulic head drop,the velocity patterns and the flow rate,and the swimming behavior includes the burst-coast,the sustained swimming and the migratory path,and they are analyzed under the test *** sustained swimming velocity is in the range from 0.65m/s to 1.09m/*** estimated hydraulic head drop of each pool is calculated and is in the range from 0.08-0.11 m,which means that 2.6% slope is *** the same slope,the maximum velocity is further reduced from 1.24 m/s to 1.14 m/s by using an L shape baffle *** above findings are used as the basis to evaluate the hydraulic performance of the fishways,where the L shape baffle structure is expected to be effective tor creating a preterencial flow for the *** the main stream of the pool,an Ω shape flow pattern is more fish-friendly,which can effectively extend the energy dissipation distance and avoid the bursting through a high velocity *** paper provides a useful complementary tool for practical designs.
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