Accession Number : AD0610512

Title :   NON-NEWTONIAN PIPE FRICTION STUDIES WITH VARIOUS DILUTE POLYMER WATER SOLUTIONS.

Descriptive Note : Rept. for Aug 63-May 64,

Corporate Author : MINNESOTA UNIV MINNEAPOLIS ST ANTHONY FALLS HYDRAULIC LAB

Personal Author(s) : Ripken,John F. ; Pilch,Meir

Report Date : JUN 1964

Pagination or Media Count : 66

Abstract : The study extends existing data on the frictional drag reducing influence of long-chain polymers in dilute water solutions. Studies were conducted with both fresh and sea water in capillary tubes and pipes with a size range of 100 diameters and covering the laminar, transition, and turbulent regimes with N'(Re) up to 800,000. Fifteen types of test additives were used, including Polyhall, Polyox, Westco Guar, and fish slime. Test temperatures ranged from 40 to 85F. Dilute solutions ranging down to 10 ppm concentration exhibited remarkable friction reductions at high shear rates as a nearlaminar type of flow. Data correlation was hampered by diameter, temperature, and concentration effects not resolved by existing flow parameters based on power law theory. Shear degradation effects were evaluated. (Author)

Descriptors :   (*FLUID FLOW, LUBRICATION), (*POLYMERS, LUBRICANTS), (*FRICTION, INHIBITION), PIPES, CAPILLARY TUBES, DRAG, LAMINAR FLOW, TURBULENCE, SOLVENTS, SEA WATER, ADDITIVES, ACRYLIC RESINS, EPOXY RESINS

Distribution Statement : APPROVED FOR PUBLIC RELEASE