ABSTRACT
ABSTRACT: This paper presents quantitative analyses of large eddies, turbulence and secondary flow in compound channel with floodplain roughened by trees for overbank flow using simulation results of a 2-D depth averaged Large Eddy Simulation (LES). The results are compared with the experimental data obtained from Flood Channel Facility UK (FCF). The predicted longitudinal velocity and bed shear stress were compared with the experimental data and were a reasonably good agreement. The contributions of the Reynolds stress and secondary flow to flow resistance were found to be relatively significant in the shear layer.
