Abstract
A study was undertaken to determine the in vitro effects of drag reducing polymers on the pulsed flow characteristics of calf blood through rigid tubes. Both uniform diameter tubes and tubes containing localized constrictions were tested. Results for turbulent flow of blood in the uniform diameter tubes indicated that reductions in pressure loss of at least 30 percent were generally possible by addition of 40 ppm of a soluble polyacrylamide polymer. For laminar flow of blood through tubes containing a constricted region, results showed that variations in drag were strongly dependent on the geometry of the construction and the approach velocity. In each case, results appear to agree closely with predictions based on viscoelastic fluid behavior.
| Original language | English |
|---|---|
| Pages | 1459-1464 |
| Number of pages | 6 |
| State | Published - 1974 |
ASJC Scopus subject areas
- General Engineering