摘要
针对多孔水闸湍流特性,引入三维湍流运动理论,建立数值分析模型,研究了堰流与闸孔出流状态下流速在水闸断面上变化特征,并分析了闸门相对开度对流速变化的影响,且对比了两种流态流速变化趋势特征在工况一与工况三下具有相似性。获得了三维湍流场中水气二相分布特征,研究了水气两相对水位抬升及回落的影响特性等。
Considering the turbulence flow characteristics of the multi-gate sluice,a three-dimensional numerical simulation model based on the turbulent motion theory is constructed to analyze the variation of the flow velocity on the cross section of the sluice under the weir flow or gate flow conditions and the influence of the gate opening on the flow velocity variation.It is found that the flow velocity variations under the weir flow or gate flow conditions are similar for the working condition 1 and 3.Also,the water-air two-phase distribution characteristics of the three-dimensional turbulent flow field are obtained.The influence of the water-air phases on the water level rising and falling is discussed.
作者
穆燕
MU Yan(Wujiaqu No.6 Agricultural Division Survey, Design and Research Co., Ltd., Wujiaqu 831300, China)
出处
《水电与新能源》
2020年第5期21-25,共5页
Hydropower and New Energy
