巻 4,
発行 4, 2016,
pp. 253-258
DOI: 10.1615/InterfacPhenomHeatTransfer.2017021348
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Alexandr Z. Kvon
Institute of Thermophysics Siberian Branch of RAS, 1 Lavrentyev Ave., 630090,
Novosibirsk, Russia; Novosibirsk State University, Lyapunova 1, 630090 Novosibirsk, Russia
Aleksey V. Bobylev
Kutateladze Institute of Thermophysics, Siberian Branch of the Russian Academy of Sciences 1, Academician Lavrentyev Av., Novosibirsk 630090, Russia; Novosibirsk State University, Lyapunova 1, 630090 Novosibirsk, Russia
Vladimir V. Guzanov
Institute of Thermophysics Siberian Branch of RAS, 1 Lavrentyev Ave., 630090, Novosibirsk, Russia; Novosibirsk State University, Lyapunova 1, 630090 Novosibirsk, Russia
Dmitriy M. Markovich
Kutateladze Institute of Thermophysics, Siberian Branch of the Russian Academy of Sciences
(IT SB RAS), 1, Lavrentyev Ave., Novosibirsk, 630090, Russia; Department of Physics, Novosibirsk State University (NSU), 1, Pirogov Str., Novosibirsk, 630090, Russia; Institute of Power Engineering, Tomsk Polytechnic University (TPU), 30, Lenin Ave., Tomsk, 634050, Russia
Sergey M. Kharlamov
Kutateladze Institute of Thermophysics, Siberian Branch of the Russian Academy of Sciences 1, Academician Lavrentyev Av., Novosibirsk 630090, Russia; Novosibirsk State University, Lyapunova 1, 630090 Novosibirsk, Russia
要約
The flow structure in a three-dimensional (3D) wave on the surface of a vertically falling liquid film is investigated.
Measurements of the film thickness and two-component (2C) velocity fields in the entire volume of the wave are conducted simultaneously for the first time. For this purpose, optical methods such as laser-induced fluorescence (LIF) and light-field particle tracking velocimetry (PTV) are applied. The existence of regions where liquid outflows from the 3D wave and inflows to the 3D wave occur is experimentally shown. Moreover, it is shown that the main regions of transverse liquid flows are lying under the main hump of the 3D wave. Additionally, backflows against gravity are found in some areas of the capillary precursor.