河网非恒定流计算的牛顿迭代解法  

Newton iterative on calculation of unsteady flow in channel network

作　　者：张大伟[1] 董增川[1] 李少华[1] ZHANG Da-wei, DONG Zeng-chuan, LI Shao-hua (College of Water Resources and Environment, Hehai Univ., Jiangsu Nanjing 210098, China)

机构地区：[1]河海大学水资源环境学院，江苏南京210098

出　　处：《西北水力发电》2004年第3期31-33,共3页Journal of Northwest Hydroelectric Power

摘　　要：对描述河网非恒定流的圣维南方程组进行差分，利用牛顿迭代的数值计算方法建立迭代方程组，并应用一种特殊的高斯消元法来求解此方程组；给出了一维河网非恒定流的一个通用解法；用一个实例验证了此解法的可行性。Use the question banks of St.Venant which depicts unsteady flow in channel network and use the Newton iterative method to establish iterative equation.Use the particular Gaussian elimination matrix solution techniques with the sparse matrix to make out the iterative equation and give a kind of calculation of one dimention unsteady flow in channel network.. An example is given to prove this calculation method practicable.

关 键 词：河网 非恒定流 牛顿迭代法 高斯消元 

分 类 号：TV133.2[水利工程—水力学及河流动力学]