3D flow at a river bend

Three-dimensional Spiral flow called “secondary current of first kind” simulated by NaysCUBE.

mode of alternate bars (2)

B/H is different from mode of alternate bars (1)

Akatani River Sediment Flooding Simulation during 2017 Flood in Kyushu, Japan

Solver: Nays2dFlood Simulated by Mr. Yoshiaki Ishida, Hokkaido University

Calculation of meandering by adaptive moving grid

mode of alternate bars (1)

B/H is different from mode of alternate bars (2)

Particle simulation following near bottom velocity in a meandering flume