Accession Number : ADA313939

Title :   Flood Control Structures Research Program: Open-Channel Velocity Prediction Using STREMR Model.

Descriptive Note : Final rept.,

Corporate Author : ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS HYDRAULICS LAB

Personal Author(s) : Maynord, Stephen T.

PDF Url : ADA313939

Report Date : JUL 1996

Pagination or Media Count : 44

Abstract : The STREMR two dimensional depth-averaged model is compared to observed data from three trapezoidal channel bends, one straight trapezoidal channel, and one natural channel bend having an erodible bed. STREMR was selected because it includes an empirical correction for secondary currents. Without the secondary correction activated, STREMR did poorly in channel bends. With the secondary correction activated, the model did well on the channel bottom and on the lower half of the side slope. Predicted velocities were greater than observed velocities on the upper half of the side slope. The secondary correction in natural channels is needed but less significant than in trapezoidal channels because natural channel bathymetry plays a significant role in defining velocity distribution.

Descriptors :   *COMPUTER PROGRAMS, *CHANNELS(WATERWAYS), *INCOMPRESSIBLE FLOW, *FLOOD CONTROL, VELOCITY, MATHEMATICAL MODELS, DISTRIBUTION, TWO DIMENSIONAL, SECONDARY, BENDING, BATHYMETRY, SLOPE, RIVERS, CURRENTS, CORRECTIONS.

Subject Categories : Hydrology, Limnology and Potamology
      Computer Programming and Software
      Civil Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE