What question did this study set out to answer?

To investigate the competitive mechanism of condensed oil adhesion and removal in cold transportation pipelines under varying temperatures.

Adhesion and removal competitive mechanism of condensed oil in cold transportation pipelines

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Experiments reveal that temperature affects oil adhesion and removal in pipelines, indicating critical speed influences mechanism shifts.

To investigate the competitive mechanism of condensed oil adhesion and removal in cold transportation pipelines under varying temperatures.
Conducted experiments to analyze the effects of temperature on oil adhesion and removal.
Evaluated the transition of regimes based on surface energy and hydrodynamic shear.
Determined the critical speed for mechanism transition using torque balance.
Temperature reduction enhances adhesion through wax crystal network formation and interparticle cohesion.
Higher temperatures weaken adhesion, facilitating oil removal by disrupting cohesive interactions.
Average relative error for predicted critical speed was less than 25%.

Qin et al. (2026) studied this question.

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