摘要
针对Rampura雨水泵站开敞式进水池可能出现的流态问题,采用1:6几何比尺建立了正态整体物理模型,对其进行水力试验研究。通过对典型工况进行试验,分析了进口段、前池段、泵室段和喇叭口处不同断面的水流流态、流速分布及沿程水位变化。结果表明,各部位设计与布置较为合理,运行中没有出现明显的不利流态,但低水位运行会对流态造成一定影响。该物理模型测试方法合理、可行,对于类似泵站的设计测试具有一定的参考价值。
In terms of the flow regime problems of open suction sump in Rampura rainw ater pumping station, a normal physical model was built wit h 1: 6 ratio of geometric scale for the study and its hydraulic test w as conducted. Several typical working conditions were analyzed to determine the flow regime, velocity distribut ion, and w ater level variation in the intake section, fore-bay section, pump chamber section, and different sections of bell mouth were obtained. The result s showed that the design and layout of each sect ion are reasonable and unsatisfactory flow regime does not occur during the operating period of the rainw ater pumping station, but the flow regime can be affected under the operation of low water level. T he physical model test is feasible and reasonable, w hich can provide reference for the design of similar pump stations.
出处
《南水北调与水利科技》
CAS
CSCD
北大核心
2015年第4期708-712,共5页
South-to-North Water Transfers and Water Science & Technology
基金
河南省高等学校青年骨干教师资助项目(2013GGJS-197)
关键词
水力特性
模型试验
流态
流速
Rampura雨水泵站
hydraulic characteristics
model test
flow regime
flow velocity
Rampura rainwater pumping station
