@inproceedings{072e7c504bd04caa8d4378c081ba4b00,
title = "Effect of drag reducing polymer on annular flow patterns of air and water in a small horizontal pipeline",
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.",
author = "A. Al-Sarkhi and E. Abu-Nada",
year = "2005",
language = "British English",
isbn = "1855980649",
series = "12th International Conference on Multiphase Production Technology '05",
pages = "573--583",
editor = "A. Hunt",
booktitle = "Papers presented at",
note = "12th International Conference on Multiphase Production Technology '05 ; Conference date: 25-05-2005 Through 27-05-2005",
}