明渠非恒定流数值计算的边界处理新方法

A New Method of Boundary treatment for Numerical Computation of Unsteady Open Channel Flow

本文采用扩散格式模拟明渠非恒定沈并提出了一种边界处理的新方法，代数方程采用松弛Ｎ－Ｒ方法，计算收敛速度较同类计算方法快。

In this paper,the diffusion scheme is applied to imitate unsteady open channel folw,and anew method is presented to trent boundary computation. Algebric equations are solved with relaxed N-R method.The convergence is better than other similar methods.