Title:	Three-dimensional mathematical model of the liquid film downflow on a vertical surface
Authors:	Pavlenko, Ivan Liaposhchenko, Oleksandr Ochowiak, Marek Olszewski, Radoslaw Demianenko, Maryna Starynskyi, Oleksandr Ivanov, Vitalii Yanovych, Vitalii Włodarczak, Sylwia Doligalski, Michal
Citation:	PAVLENKO, I. LIAPOSHCHENKO, O. OCHOWIAK, M. OLSZEWSKI, R. DEMIANENKO, M. STARYNSKYI, O. IVANOV, V. YANOVYCH, V. WŁODARCZAK, S. DOLIGALSKI, M. Three-dimensional mathematical model of the liquid film downflow on a vertical surface. Energies, 2020, roč. 13, č. 8, s. 1-15. ISSN 1996-1073.
Issue Date:	2020
Publisher:	MDPI
Document type:	článek article
URI:	2-s2.0-85083626086 http://hdl.handle.net/11025/43156
ISSN:	1996-1073
Keywords in different language:	Dimensionless parameters;Gas-liquidInterfacial surface;Separation layer;Velocity field
Abstract in different language:	Film downflow from captured liquid without wave formation and its destruction is one of the most important aspects in the development of separation equipment. Consequently, it is necessary to create well-organized liquid draining in areas of captured liquid. Thus, the proposed 3D mathematical model of film downflow allows for the determination of the hydrodynamic parameters of the liquid film flow and the interfacial surface. As a result, it was discovered that the interfacial surface depends on the proposed dimensionless criterion, which includes internal friction stress, channel length, and fluid density. Additionally, equations for determining the averaged film thickness, the averaged velocity vectors over the film thickness, the longitudinal and vertical velocity components, and the initial angle of streamline deviation from the vertical axis were analytically obtained.
Rights:	© MDPI
Appears in Collections:	Články / Articles (KKE) OBD

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