Non-inertial flow of dilute polymer solutions in a sudden contraction
Abstract
Non-inertial flow of dilute polymer solutions in a sudden contraction was examined to interpret clearly the extensional-thickening behavior of the solutions. Experimental conditions were reviewed, and the velocity field and axial extensional velocities were discussed. A linear hydrolyzed polyacrylamid (HPAM) was dissolved in a Newtonian fluid to make the polymer solution. The velocities were measured with a laser Doppler velocimeter.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- January 1984
- Bibcode:
- 1984STIN...8430221.
- Keywords:
-
- Axial Flow;
- Convergence;
- Fluid Flow;
- Polymers;
- Velocity Distribution;
- Deformation;
- Flow Theory;
- Laser Doppler Velocimeters;
- Molecules;
- Newtonian Fluids;
- Relaxation (Mechanics);
- Rheology;
- Viscosity;
- Fluid Mechanics and Heat Transfer