Abstract
The results of a laboratory investigation of the effect of a liquid film covering the inner surface of a circular gas pipe on its hydraulic resistance are given. The problems of the similarity of liquid film flows are considered. It is shown that the liquid film increases the resistance of a hydraulically smooth pipe but can reduce that of a rough pipe due to the decrease in the equivalent roughness.
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Lashkov, Y.A., Mikhailov, V.V., Samoilova, N.V. et al. Hydraulic Resistance of a Pipe with a Surface Film. Fluid Dynamics 37, 903–912 (2002). https://doi.org/10.1023/A:1022300313432
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DOI: https://doi.org/10.1023/A:1022300313432