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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
Library Call Number Additional Info Location Last
NTIS  PB-222 911 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
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.
Availability Notes Paper copy available from GPO $1.00 as EPI.23/2:73-238.
NTIS Title Notes Environmental protection technology series.
PUB Date Free Form Jun 73,
Category Codes 13B; 68D; 60B; 50B
Document Type NT
Cataloging Source NTIS/MT
Control Number 326565774
Origin NTIS
Type CAT