Vol. 8 є 1, 2018 p 30-35

Pages

Article name, authors, abstract and keyword

30-35

Modelling of the fluid flow in the presence of drag reducing additives

Alexey Y. Kokhanovsky a, Konstantin V. Toropetsky a, Vladimir N. Ulyanov b, Gleb A. Borisov a, Eduard V. Usov c

a NovosibirskNIPIneft, 20 Inzhenernaya Str., Novosibirsk, 630090, Russian Federation
b Novosibirsk Scientific and Technical Centre, 11 Nikolaeva Str., Novosibirsk, 630090, Russian Federation
c Novosibirsk Branch of the Institute for Nuclear Power Development of the Russian Academy of Sciences, 1 Lavrentyeva Str., Novosibirsk, 630090, Russian Federation

DOI: 10.28999/2541-9595-2018-8-1-30-35

Abstract: In the present work, a numerical model is proposed for calculating pressure losses in a pipeline system during the transportation of a fluid with a drag reducing additives over a wide range of Reynolds numbers. The numerical model relies on the three-layer model of the turbulent flow of a fluid in the presence of a drag reducing additive. The main feature of the model is the concept of the elasticity factor of the wall layer, depending on the type and concentration of the additive and also of liquid properties. A method is proposed for determining the elasticity factor of the wall layer on the basis of experimental data on the measurement of the efficiency of reducing the hydrodynamic resistance. Based on the developed numerical model and its subsequent calibration, the dependences of the flow rate of the linear section of the pipeline on the pressure drop in the presence of certain brands of drag reducing additives are calculated.

Keywords: drag reducing additive, drag reducing agent, three-layer turbulent flow, pipeline transport.

Reference for citing:
Kokhanovsky A. Y., Toropetsky K. V., Ulyanov V. N., Borisov G. A., Usov E. V. Modelling of the fluid flow in the presence of drag reducing additives. Naukatekhnol. truboprov. transp. neftiinefteprod. = Science & Technologies: Oil and Oil Products Pipeline Transportation. 2018;8(1):30Ц35.

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