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http://dx.doi.org/10.3741/JKWRA.2003.36.5.751

Error Analysis of Muskingum-Cunge Flood Routing Method  

Kim, Dae-Geun (대불대학교 토목환경공학과)
Seo, Il-Won (서울대학교 지구환경시스템공학부)
Publication Information
Journal of Korea Water Resources Association / v.36, no.5, 2003 , pp. 751-760 More about this Journal
Abstract
Error analysis of finite difference equation on the Muskingum-Cunge flood routing method with free time and space weighting factor was carried out. The error analysis shows that the numerical solution of the Muskingum-Cunge method becomes diverged with time when the sum of time weighting factor and space weighting factor is greater than 1.0. Numerical diffusion increases when the sum of time weighting factor and space weighting factor decreases. Numerical diffusion and numerical oscillation increase when the grid resolution is coarse. Numerical experiments and field applications show that the Muskingum-Cunge method with free space weighting factor is more effective for simulating the flood routing with great peak diminution than conventional Muskingum-Cunge method with fixed space weighting factor, 0.5.
Keywords
flood routing; Muskingum-Cunge method; error analysis; numerical diffusion; numerical oscillation;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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