Evaluation of three energy dissipators for storm-drain outlets : hydraulic laboratory investigation
Grace, John L.; Pickering, Glenn A.
Research ReportAbstract: Model tests of three commonly used energy dissipaters for storm-drain outlets were conducted to determine the limiting discharges for various sizes of stilling wells, U.S. Bureau of Reclamation type VI basins, and St. Anthony Falls stilling basins. Charts were prepared for each type of energy dissipater, showing the maximum recommended discharge that will result in good performance for given outlet diameters and structure widths in terms of the outlet diameter. With these charts and other known parameters, the designer can select the type of dissipater best suited to protect the outlet.
Hydraulics Laboratory (U.S.)Engineer Research and Development Center (U.S.)
Energy dissipation; Hydraulic models; Hydraulic structures; Outlets; Stilling basins
Research report (U.S. Army Engineer Waterways Experiment Station) ; H-71-1.
Approved for public release; distribution is unlimited.