Record Display for the EPA National Library Catalog

RECORD NUMBER: 9 OF 23

OLS Field Name OLS Field Data
Main Title Flow Augmenting Effects of Additives on Open Channel Flows.
Author Deric, Charles ; Logi, Kevin ;
CORP Author Columbia Research Corp., Gaithersburg, Md.
Year Published 1973
Report Number EPA-68-01-0168; EPA-11020-GQG; 13664,; R2-73-238
Stock Number PB-222 911
Additional Subjects ( Channels(Waterways) ; Flow rate) ; ( Weirs ; Flow rate) ; ( Combined sewers ; Flow rate) ; ( Skin friction ; Reduction) ; Fluid friction ; Spillways ; Turbulent flow ; Reynolds number ; Open channels ; Drag reducing polymers
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB-222 911 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 75p
Abstract
The report was undertaken to study means of increasing the flow rate in combined sewers. Two model open channel configurations (trapezoidal and rectangular) and three water soluble polymers (Polyox Coagulant, Polyox WSR-301, and Separan AP-30) were used to experimentally determine the effects of injecting dilute polymer solutions into open channel water flows. For all test cases, injection of the three polymer additives produced flow characteristic changes reflected as either a water surface level decrease at constant flow rates or a flow rate increase at constant static heads. In addition, two flumes (Parshall and Leopold-Lagco) and two model side channel spillways (90 degree V-notch weir and sharp-crested rectangular weir) were used to determine experimentally the effects of polymer additives on the flow measuring characteristics of energy dissipators.