APPLICATION OF MULTIGRID METHOD IN 2-D MATHE-MATICAL MODEL IN OPEN CHANNELS  

作　　者：Cao, Zhifang  Li, Yitian  Zhao, Mingdeng 

机构地区：[1] Wuhan Univ of Hydraulic and Electric, Engineering, Wuhan, China

出　　处：《Journal of Hydrodynamics》2000年第3期59-67,共9页水动力学研究与进展B辑（英文版）

基　　金：Project supported by the National Natural Science Foundation of China.( No.59890 2 0 0 )

摘　　要：In 2-D mathematical model, one of important problems is to improve computational speed. The multigrid method is a new rapid iteration method developed in the recent 20 years, and it has been widely used in many fields, but in sediment mathematical model it has been rarely used, especially in plane mathematical model with large scale computational scope. In this paper, the multigrid method was introduced and expected to be used widely in this field. And it is verified that the more layers are adopted, the higher convergent speed will be reached in computation.In 2-D mathematical model, one of important problems is to improve computational speed. The multigrid method is a new rapid iteration method developed in the recent 20 years, and it has been widely used in many fields, but in sediment mathematical model it has been rarely used, especially in plane mathematical model with large scale computational scope. In this paper, the multigrid method was introduced and expected to be used widely in this field. And it is verified that the more layers are adopted, the higher convergent speed will be reached in computation.

关 键 词：Flow of water Sediment transport Mathematical models Iterative methods Numerical methods Computational fluid dynamics 

分 类 号：TV131.2[水利工程—水力学及河流动力学]