NUMERICAL SIMULATION OF MEANDERING COMPOUND CHANNEL FLOW WITH STEEP GRADIENT BED USING CIP METHOD

Abstract

It is important for river planning and improvement to predict flows in steep gradient slope river. In this study, weapply 2-D shallow water equation model to the experiment of meandering compound channel flow with steep gradient bed. We use CIP method, which can simulate the unsteady and rapid flow without the numerical viscosity.
We examine the characteristics and application of this model. The result of simulation can describe water level and velocity, but cannot describe the detail of change about water level. We also estimate bed shear stress and vortex from this simulation.