Abstract
Drag-reduction for air and water flowing in a horizontal 0.0127 m pipe was studied experimentally. The fluids had an annular configuration. The injection of polymer solution produced drag-reductions as high as 47 percent with concentration of only 40 wppm in the pipeline. A maximum drag reduction that is accompanied (in most cases) by a change to a stratified pattern for which the concentration of drops in the gas phase is zero or close to zero. The effectiveness of the drag-reducing polymer is sensitive to the gas and liquid flow rates. Description of the phase change by drag reducing polymers is identified.
| Original language | English |
|---|---|
| Title of host publication | Papers presented at |
| Subtitle of host publication | 12th International Conference on Multiphase Production Technology '05 |
| Editors | A. Hunt |
| Pages | 573-583 |
| Number of pages | 11 |
| State | Published - 2005 |
| Externally published | Yes |
Publication series
| Name | 12th International Conference on Multiphase Production Technology '05 |
|---|
ASJC Scopus subject areas
- General Engineering
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