Water transfer characteristics analysis and control measures research on Jiaodong water transfer project in freezing period
Combined with project operation experience,this paper analyzes the water transfer characteristics of Jiaodong water transfer project at different freezing period stages,which mainly include heat exchange and temperature changes among gas,water,and ice in channel;the forma-tion,evolution,and related conditions of drift ice and ice cover,changes in water transfer capacity,and the melting process of ice cover.It focus on the influence of factors such as Froude number,flow velocity,submergence depth of flow orifice sections on the development pattern of ice condi-tions,the changing characteristics and calculation methods of ice cover roughness,and the differ-ences in water transfer capacity under ice cover and no ice cover conditions.Based on these analy-ses,control measures are proposed in terms of hydraulic control,engineering technology,intelli-gent dispatching,dispatching management,and emergency response.These measures have been proven effective through engineering practice.Finally,several suggestions are provided through thinking about the research status on numerical simulation and control of ice and water conditions.It has certain reference significance for long-distance water transfer project during freezing period to improve operation control abilities and solve ice damage.
Jiaodong water transfer projectOperation during freezing periodWater transfer characteristicsControl measuresWater transfer capacityIce cover roughnessHydraulic controlNumerical simulation
NETL
NSTL
万方数据
