The aim of this paper was to present the possibility to enhance the drag reduction effect in pipe flow by simultaneous addition of high molecular polymers and surfactants to the transported liquid medium.
The mechanism of drag reduction by polymeric and micellar aggregates was presented. Qualitative analysis of polymer and micellar additives influence on the shape and character of flow re sistance curves was performed. Multicomponent polymer micellar solution flow resistance curves were compared with the appropriate single additive polymer or surfactant solution flow resistance curves. The results indicate that the presence of polymer mice llar aggregates causes flow laminarization in the initial phase of turbulent flow, leading to the extension of the stable transition zone. Simultaneous addition of surfactant with salt and a high molecular polymer to the solvent significantly reduces mecha nical degradation of the internal structure of polymer micellar solution.
Department
Faculty of Mechanical Engineering
License
Licencja PK
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