Abstract
It is very important in Hydraulic Engineering as well as in River Environment Engineering to investigate turbulent structures in compound open-channel flows with flood plains. The present study is to conduct both the accurate turbulence mesurements with two-component fiber-optic laser Doppler anemometer (LDA) and the numerical simulations using three-dimensional algebraic stress model (3-D ASM). Both of them were compared with each other. As the results, numerical calculations including secondary currents were in a good agreement with accurate LDA database of compound open-channel flows. Of particular significance is the anisotropy of turbulence and the interaction between main channel and flood plain.
