CAJ | 학술논문

鱼道是保证鱼类能顺利洄游的过鱼设施。通过竖缝相对宽度分别为0．05，0．10，0．15，0．30，底坡为10％的鱼道模型进行数值计算。采用可视化显示及数据分析的方法分析不同竖缝相对宽度、底坡条件下的同侧竖缝式鱼道的水流结构特征。通过模型模拟，分析水流沿水深方向的流速分布情况、主流区最大流速沿程分布及沿程衰减情况，以及在不同竖缝相对宽度和（或）不同流速情况下的紊动能分布情况。综合各物理量的分析，得出竖缝相对宽度 b0／B ＝0．15、底坡为10％时，水流在池室内能形成较好的适合鱼类洄游的流态：主流区水流横向扩散范围适中，主流区最大流速沿程均匀衰减，回流区面积较为对称，流速较小。
어도시보증어류능순리회유적과어설시。통과수봉상대관도분별위0．05，0．10，0．15，0．30，저파위10％적어도모형진행수치계산。채용가시화현시급수거분석적방법분석불동수봉상대관도、저파조건하적동측수봉식어도적수류결구특정。통과모형모의，분석수류연수심방향적류속분포정황、주류구최대류속연정분포급연정쇠감정황，이급재불동수봉상대관도화（혹）불동류속정황하적문동능분포정황。종합각물리량적분석，득출수봉상대관도 b0／B ＝0．15、저파위10％시，수류재지실내능형성교호적괄합어류회유적류태：주류구수류횡향확산범위괄중，주류구최대류속연정균균쇠감，회류구면적교위대칭，류속교소。
The flow structure in ipsilateral vertical slot fishway is researched by changing the relative width of verti-cal slot (0.05,0.1 0,0.1 5,0.30)and bottom slope 1 0% in a fishway model.Visual display and data analysis are adopted in the research.Through the simulation,the flow velocity distribution along water depth,the frictional distribution and attenuation of maximum flow velocity in mainstream area,as well as the turbulence kinetic energy distribution in the presence of different relative slot width and different flow velocity are obtained.Results reveal that when vertical slot width b0 /B =0.1 5 and bottom slope is 1 0%,flow pattern favorable for fish migration could be formed in the pool:the range of transverse diffusion of flow in mainstream area is moderate,the maximum flow velocity in the mainstream area attenuates uniformly along the way,and the backflow area is symmetrical with small flow velocity.