Accession Number:

AD0722286

Title:

The Mechanisms of the Effect of Dissolved Macromolecules on Turbulent Friction,

Descriptive Note:

Corporate Author:

FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s):

Report Date:

1970-12-22

Pagination or Media Count:

21.0

Abstract:

The decrease in the turbulent friction in non-Newtonial liqs. was determined as a function of the physical properties of the dissolved molecules and of the hydrodynamic conditions particularly Reynolds No.. Data obtained from solutions of synthetic polymers e.g., CM-cellulose and polyvinyl alc. or bio-polymers e.g., polysaccharides and fish slime suggested that a decrease in the turbulent friction was dependent on the rheological constants of the solution and its concentration. The effects of the dissolved macromolecules on the turbulent friction in non-Newtonian liquids was interpreted in terms of an anisotropic viscosity hypothesis. Author

Subject Categories:

  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE