摘要
由于在消力池内布置双层悬栅对消能效果影响少有研究,考虑到单宽流量、悬栅栅条数、栅距和层距等影响因素,采用均匀正交设计,考察4因素3水平,选择UL9(34)优化方案进行模型试验,对比了不同流量和悬栅布置型式组合下消力池内下降水深及消能率。试验结果表明:不考虑单宽流量时,消力池内布置双层悬栅,下降水深受层距、栅条数以及栅距影响较大,其中层距改变影响最大,消能率受这些影响因素影响较小;单宽流量较小时,层距和栅距均与下降水深成正比关系,单宽流量较大时,层距与下降水深成正比关系。
Due to rare research on effect of energy dissipation of double suspended grid laying in absorp-tion basin,considering the discharge per unit width,suspended grid bar number,grid distance,layer dis-tance and other influencing factors,it adopts the uniform orthogonal design to investigate four factors threelevels,choose UL9（34） optimization scheme for model test,and compares declined water depth and energydissipation percentage in absorption basin under the combination of different flow and suspended grid ar-rangement type. Experimental results are shown that：（1） no considering about discharge per unit width,double suspended grid laid in absorption basin, declined water depth is greatly influenced by layer dis-tance,grid bar number and grid distance,where the influence of layer distance change is the greatest,but effect of energy dissipation is less influenced by these factors;（2） when the discharge per unit widthis smaller,layer distance and the grid distance are proportional to declined water depth,while the dis-charge per unit width is bigger,the layer distance is proportional to the declined water depth.
出处
《中国水利水电科学研究院学报》
北大核心
2015年第5期357-362,共6页
Journal of China Institute of Water Resources and Hydropower Research
基金
国家自然科学基金项目(51469031)
新疆优秀青年科技创新人才培养项目(2013721027)
新疆自治区级大学生创新训练计划项目(201510758080)
关键词
双层悬栅
均匀正交设计
下降水深
层距
栅距
栅条数
double suspended grid
uniform orthogonal design
decline water depth
layer distance
grid distance
grid bar number
