• KSCE Journal of Civil and Environmental Engineering Research
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• v.26 no.2B
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• pp.209-216
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• 2006

This study is to analyse the characteristics of bar migration, which is important roles to bank erosion and meandering development, for the meandering channels with erodible bed by using a 2-D numerical model in the generalized coordinate systems. The results of the numerical experiments showed that the features of bar migration were affected by the meandering wavelength to the width ratio, and had a relatively good agreement with the criterion for bar migration through a bend suggested by Kinoshita and Miwa (1974). The bar migrated with speed in the channel with long wavelength and broad width, and the criterion for bar migration was increased. The bar celerity was decreased abruptly near the criterion.