MATHEMATICAL-MODELING OF SHING MUN RIVER NETWORK

被引：33

作者：

CHAU, KW

LEE, JH

机构：

[1] Department of Civil and Structural Engineering, Hong Kong Polytechnic

[2] Department of Civil and Structural Engineering, University of Hong Kong

来源：

ADVANCES IN WATER RESOURCES | 1991年 / 14卷 / 03期

关键词：

BRANCHED CHANNEL NETWORK; IMPLICIT FINITE DIFFERENCE METHOD; MICROCOMPUTER; SHING MUN RIVER; TIDAL FLAT; UNSTEADY OPEN CHANNEL FLOW;

D O I：

10.1016/0309-1708(91)90001-5

中图分类号：

TV21 [水资源调查与水利规划];

学科分类号：

081501 ;

摘要：

This paper implements an accurate as well as efficient solution to the non-linear de Saint-Venant Equation describing unsteady open channel flow. The time history of stages and discharges within individual segments in any channel can be simulated in a connected, essentially one-dimensional network, subject to initial and boundary conditions. The mathematical model developed is based on the 4-point operators Preissmann implicit finite difference scheme and is tailored for use on the IBM/PC/XT or PC/AT microcomputers preferably with 80287 numeric coprocessor chips in place. The program is written in FORTRAN and is compiled by PC software Microsoft FORTRAN version 4.0. Real hydraulic features, including branched channels and 'tidal flats', are simulated. The model is subjected to carefully chosen analytical test problems which embrace many essential realistic features of coastal hydrodynamic applications. Excellent agreement is recorded with the analytical solutions. The model is applied to study the tidal dynamics and potential flood hazards in the Shing Mun River network, Hong Kong.

引用

页码：106 / 112

页数：7

共 9 条

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