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.
