| APPLICATION OF MULTIGRID METHOD IN 2-D MATHE-MATICAL MODEL IN OPEN CHANNELS |
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| 引用本文： | Cao Zhi-fang,Li Yi-tian,Zhao Ming-deng Wuhan University of Hydraulic and Electric Engineering,Wuh an 430072,P.R.China. APPLICATION OF MULTIGRID METHOD IN 2-D MATHE-MATICAL MODEL IN OPEN CHANNELS[J]. 水动力学研究与进展(B辑), 2000, 12(3) |
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| 作者姓名： | Cao Zhi-fang Li Yi-tian Zhao Ming-deng Wuhan University of Hydraulic and Electric Engineering Wuh an 430072 P.R.China |
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| 作者单位： | Cao Zhi-fang，Li Yi-tian，Zhao Ming-deng Wuhan University of Hydraulic and Electric Engineering，Wuh an 430072，P.R.China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China.( No.59890 2 0 0 ) |
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| 摘 要： | 1. INTRODUCTIONIn 2 -D mathematical model of unsteady flow in open channel,one of the mostdifficulties is its slow convergence rate and too much time needed in computation.Themultigrid method is a new rapid iteration method developed in the resent 2 0 years. Now ithas been verified as an optimizing iteration method and its convergence rate has no relationswith mesh spacing.At present the multigrid method has been widely used in many fields(Liu Chaoqun,1 995;Peng Wenqi,1 994 ) ,especia…
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APPLICATION OF MULTIGRID METHOD IN 2-D MATHEMATICAL MODEL IN OPEN CHANNELS |
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| Cao Zhifang,Li Yitian,Zhao Mingdeng. APPLICATION OF MULTIGRID METHOD IN 2-D MATHEMATICAL MODEL IN OPEN CHANNELS[J]. Journal of Hydrodynamics, 2000, 12(3) |
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| Authors: | Cao Zhifang Li Yitian Zhao Mingdeng |
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| Abstract: | In 2-D mathematical mo del, one of the important problems is to improve computational speed. The multig rid method is a new rapid iteration method developed in the resent 20 years, and it has been widely used in many fields, but in sediment mathematical model it h as been rarely used, especially in plane mathematical model with large scale com putational scope. In this paper, the multigrid method is introduced and expected to be used widely in this field. And it is verified that the more layers are a dopted, the higher convergent speed will be reached in computation. |
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| Keywords: | HFAM multigrid method coordinates transformation method |
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