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GRID GENERATION AND NUMERICAL SIMULATION OF 2-D RIVER FLOW
引用本文:Zhao Ming deng,Li Yi tian Department of River Engineering,Wuhan University,Wuhan 430072,China. GRID GENERATION AND NUMERICAL SIMULATION OF 2-D RIVER FLOW[J]. 水动力学研究与进展(B辑), 2001, 0(2)
作者姓名:Zhao Ming deng  Li Yi tian Department of River Engineering  Wuhan University  Wuhan 430072  China
作者单位:Zhao Ming deng,Li Yi tian Department of River Engineering,Wuhan University,Wuhan 430072,China
基金项目:Theresearchwassupportedbythe“ChenguangJihua”FoundationofWuhanCity (No :985 0 0 30 80 )andtheNationalNat uralScienceFoundationofChina(No :5 9890 2 0 0 ) .
摘    要:1 . INTRODUCTIONInnaturalriver,theshapesofboundariesandsec tionsareoftenirregular ,whichisadifficultproblemfornumericalsimulation .Tosolvethisproblem ,acoordi natetransformationmethodisoftenusedtotransformtheirregularregioninthephysicalplane(X ,Y)totheregula…


GRID GENERATION AND NUMERICAL SIMULATION OF 2-D RIVER FLOW
Zhao Ming deng,Li Yi tian. GRID GENERATION AND NUMERICAL SIMULATION OF 2-D RIVER FLOW[J]. Journal of Hydrodynamics, 2001, 0(2)
Authors:Zhao Ming deng  Li Yi tian
Affiliation:Zhao Ming deng,Li Yi tian Department of River Engineering,Wuhan University,Wuhan 430072,China
Abstract:This paper presents new weighting functions in grid generation and new discretizing scheme of momentum equations in numerical simulation of river flow. By using the new weighting functions, the curvilinear grid could be concentrated as desired near the assigned points or lines in physical plane. By using the new discretizing scheme, the difficulties caused by movable boundary and dry riverbed can be overcome. As an application, the flow in the Wuhan Section of Yangtze River is simulated. The computational results are in good agreement with the measured results. The new method is applicable to the numerical simulation of 2 D river flow with irregular region and moveable boundary.
Keywords:grid generation   finite analytic method   moveable boundary   numerical simulation  
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