TCC控制下的渠道水流数值模拟研究  

Research on Numerical Simulation of Channel Flow under Control of TCC

作　　者：周迎[1] 闫宝迎[1] 殷国玺[1] 方少文[2] 杨洁[2] 

机构地区：[1]河海大学水利水电学院,南京210098 [2]江西省水土保持科学研究所,南昌330029

出　　处：《中国农村水利水电》2014年第5期98-100,共3页China Rural Water and Hydropower

基　　金：国家科技支撑计划(2012BAJ25B01-4);水利部公益性行业科研专项(201101010);江西省水土保持科学研究所开放研究基金(201102)

摘　　要：青铜峡灌区建立了全国首个全渠道控制系统(简称TCC)示范区,TCC通过测控一体闸控制水位流量,运行调度过程中渠系产生非恒定非均匀流。应用圣维南方程组模拟渠道水位流量过程,应用普列斯曼有限差分法离散方程组,采用牛顿-拉普森迭代法求解非恒定非均匀流的代数方程组。针对U形渠道进行了水流过程的数值计算,验证结果表明,圣维南方程组及牛顿-拉普森迭代法适用于测控一体闸的水流模拟,水位和流量的计算结果与实测值误差较小。研究结果为建立测控一体闸的控制模式提供依据。The country＇s first full channel control system（TCC） established in Qingtongxia Irrigation Area, in the control of Measure ment and control one brake, non-steady non-uniform flow will appear in the control weir when water distribution, in response to this phenomenon. In this paper, the saint venant equations is used to simulate water levels and discharge In the process of weir adjust ment, the method of finite difference is used for discreting equations. The Newton--raphson is applied to solve nonlinear equations. The numerical calculation of the flow process for the U shaped channel. Verification results show that the saint venant equations and Newton. Posen iteration method is suitable for the measurement and control in one brake, the calculation results compared with the measured values. Error is small. The results provide a basis for measuring and controling one brake control mode.

关 键 词：全渠道控制系统 U形渠道 圣维南方程 牛顿—拉普森迭代法 有限差分法 

分 类 号：TV135.3[水利工程—水力学及河流动力学]