The paper presents polymer-micellar aggregates as efficient drag reducers of the energy losses in straight pipe flow. A small amount of high molecular polymers: Polyethylene Oxide, Cetyltrimetyl Ammonium Bromide surfactant and Sodium Salicylate salt additives, are applied to obtain polymer-micellar aggregates formation. An analysis of how polymermicellar additives influence the shape and character of flow resistance curves has been performed. It is documented that for polymer-micellar solutions the stable transitional zone between, the laminar and the turbulent flows are extended toward higher values of the Reynolds number. Occurrence of the third turbulent zone of drag reduction is also observed.

The paper presents polymer-micellar aggregates as efficient drag reducers of the energy losses in straight pipe flow. A small amount of high molecular polymers: Polyethylene Oxide, Cetyltrimetyl Ammonium Bromide surfactant and Sodium Salicylate salt additives, are applied to obtain polymer-micellar aggregates formation. An analysis of how polymermicellar additives influence the shape and character of flow resistance curves has been performed. It is documented that for polymer-micellar solutions the stable transitional zone between, the laminar and the turbulent flows are extended toward higher values of the Reynolds number. Occurrence of the third turbulent zone of drag reduction is also observed.