Accession Number : ADA192072
Title : Injection of Drag Reducing Additives into Turbulent Water Flows.
Descriptive Note : Technical rept. 1 Mar-30 Nov 87,
Corporate Author : PURDUE UNIV LAFAYETTE IN SCHOOL OF MECHANICAL ENGINEERING
Personal Author(s) : Walker, David T ; Tiederman, William G
PDF Url : ADA192072
Report Date : Feb 1988
Pagination or Media Count : 38
Abstract : The primary objective of this portion of the program is to build a data base that is sufficient to critically test models of the initial mixing between a polymer solution injected at the wall and a turbulent water flow. Time-resolved concentration measurements were made using a laser-induced fluorescence technique downstream of a flush mounted wall injector. The injected polymer solution was a 700 ppm aqueous solution of SEPARAN AP-273 AP-273. For comparison purposes, measurements were also made for a water injection at the same flow rate. The results for the instantaneous, mean and root-mean-square concentration profiles at positions 10, 25, 50 and 100 mm downstream of the injector show how the mixing decreases when the injectant is a polymer solution.
Descriptors : *ADDITIVES, *DRAG REDUCTION, *TURBULENT FLOW, *WATER, DATA BASES, FLOW RATE, INJECTORS, LASER INDUCED FLUORESCENCE, MOBILIZATION, MODELS, POLYMERS, SOLUTIONS(MIXTURES), WALLS, WATER FLOW, WATER INJECTION
Subject Categories : Fluid Mechanics
Distribution Statement : APPROVED FOR PUBLIC RELEASE