水科学进展2017，Vol.28Issue(6)：879-887,9.DOI:10.14042/j.cnki.32.1309.2017.06.009
仿自然鱼道整体物理模型试验研究
Physical model test study on nature-like fishways
摘要
Abstract
Nature-like fishways not only satisfies the migration needs of different fishes, but also increases the diversi-ty of fish habitats in river channels. It is the hot research area, to which researchers pay much attention recently. For the complexity of the structure, the variability of cross section type, and the difficulty of roughness calculation at bot-tom and side slope, there is no accepted and perfected method to study the flow condition of nature-like fishways at present. This paper takes nature-like fishway of Xin′gan hydro-junction as research object. An integral physical model test with scale of 1 :12 is established to explore the feasibility of flow conditions in fishway scheme. The results show that the research methods of technical fishways can be used to control the parameters of nature-like fishways such as bottom slope, bottom width, pool length, deviation rate, permeability, and so on. Then the integral physical model test with validation and optimization can be applied to guide the design of nature-like fishways. Compared to technical fishways, the velocity difference in nature-like fishways route is obviously influenced by size error of cross section and construction material. Especially, in the curved section of fishways, the deviation rate is affected by the curve, and the velocity is easy to be higher or lower than the one in the straight route. The research may offer a sound basis for en-gineering design, and also provide a frame of reference to study the nature-like fishways.关键词
仿自然鱼道/物理模型试验/水流条件/体型优化Key words
nature-like fishways/physical model test/flow condition/shape optimization分类
建筑与水利引用本文复制引用
徐进超,王晓刚,宣国祥,郑飞东,黄岳..仿自然鱼道整体物理模型试验研究[J].水科学进展,2017,28(6):879-887,9.基金项目
国家自然科学基金资助项目(51409141) （51409141）
中国气象局气象软科学研究重点项目(2017[20])本文研究工作得到了南京水利科学研究院中央级公益性科研院所基本科研业务费专项基金项目( Y116018 （2017[20]）
Y117004)资助, 在此表示感谢.The study is financially supported by the National Natural Science Foundation of China (No. 51409141). （No. 51409141）
