Accession Number:

AD0747274

Title:

Polymer Injection for Drag Reduction,

Descriptive Note:

Corporate Author:

COLORADO STATE UNIV FORT COLLINS

Personal Author(s):

Report Date:

1972-07-01

Pagination or Media Count:

100.0

Abstract:

Viscous drag reduction caused by polymer injection into a developing turbulent boundary layer was investigated in a 12-inch I.D. hydraulically rough pipe. Pressure drop measurements were made in the first 200 diameters of the pipe. Velocity profile and concentration profile measurements were also taken. Drag reductions above 90 percent were realized in the inlet region for lower injection concentrations. For a given polymer injection rate, drag reduction in the inlet region was found to decrease with increasing injection concentration. Author

Subject Categories:

  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE