Drag Reducing Agents in Multiphase Flow Pipelines: Recent Trends and Future Needs

Abstract: In this paper, recent work on drag reducing agents in single and multiphase flow pipelines is reviewed. Focus is placed on theories of drag reduction, the influence of drag reduction agent types, and hydrodynamic and heat transfer characteristics of flows in the presence of drag reducing additives. Questions are raised, shortcomings are assessed, and future research needs are outlined.

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