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
      Polymer Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE