Abstract: In the local modelling exporiment, by experimenting with the property of simple port culvert in ship lock, the relationship μ_p=f(k) has been establiohed. The formula for the drag coefficient of the single port culvert has been set up. in the whole modelling of ship lock, the property of the flow and the law of distribution of the water change of the port culvert have been illustrated. The proper layout lenth of the cutlet sectcr and the ra (∑ω_b)/ω_r areas have also been determined, the research resuhts can have reference value.

Key words: drag coefficient of the single port of the culvert in ship lock, distribution of water charge, outlet of low, ratio of areas

摘要： 在局部模型上,通过对单支管水力特性的试验,建立了μ_p=f(k)函数关系,提出了单支管阻力系数的计算公式,并在船闸整体模型上,论证了支管的出流特性及流量分配规律,确定了支管出水段长度和面积比(∑ω_b)/ω_r的合理布置范围,其研究成果可供参考选用。

关键词: 支管阻力系数, 流量分配, 出水段面积比