Polymer Injection for Drag Reduction,
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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1972
- Accession Number
- AD0747274
Entities
People
- J. Paul Tullis
- Lance F. Lindeman
Organizations
- Colorado State University