Summary:

The paper describes a comparison measured results and calculated velocity and turbulence intensity in downstream of weir. Investigations were conducted on model of the tired construction with outflow over gate, stilling pool and horizontal protection behind apron. Measure section were located on axial plane of channel. Measurements of velocity were executed on flat, horizontal bed and eroded bed. To measurements was used PEMS probe of registering temporary horizontal component value of vector of velocity. Results of measured characteristics of turbulence was compared from calculated by CFD Fluent program. To calculation model k-ε standard was used. Results obtained using these models were examined. In general, flowfields, velocities and turbulence predicted by FLUENT showed close agreement with relevant experimental results.