Abstract
The processes of the production of turbulence statistics in cavity open-channel flows are investigated using the numerical flow field which is computed by Direct Numerical Simulation (DNS). The reliability of the results of DNS is confirmed by comparison which the results of turbulence measurements conducted by making use of a two component fiber-optic Laser Doppler Anemometer (LDA). The results indicate that turbulence structures in cavity open-channel flows are classified into six regions and these structures can not be reproduced by standard k-ε turbulence model, but Reynolds Stress Model (RSM) has the ability to do them.
