Intensification of drag reduction effect by simultaneous addition of surfactant and high molecular polymer into the solvent

- Polymer, surfactant and polymer-surfactant water solutions were examined.
- Modern pipe-flow apparatus were applied for rheological characteristics obtained.
- Characteristic zones in flow resistance curve of analyzed solutions were defined.
- Analysis of drag reduction effect abilities of investigated solutions was performed.
- Intensification of drag reduction effect by polymer-surfactant addition was confirmed.