Open AccessApplication of the PTV with the use of a light-field camera to study three-dimensional wave regimes of liquid film flow
Author(s) -
A. Z. Kvon,
А. В. Бобылев,
V. V. Guzanov,
S. M. Kharlamov
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1677/1/012069
Subject(s) - backflow , pulmonary surfactant , capillary action , light wave , flow (mathematics) , field (mathematics) , mechanics , optics , materials science , transverse plane , flow velocity , aqueous solution , capillary wave , physics , chemistry , thermodynamics , surface wave , composite material , inlet , engineering , mathematics , mechanical engineering , organic chemistry , structural engineering , pure mathematics
We present the results of studying the influence of surfactants on three-dimensional waves, in particular, on the flow structures in the wave. Volumetric fluid velocity measurements in waves, as well as the determination of their shape, were carried out using a light field camera. An aqueous solution of the nonionic surfactant Triton-X was used as a working fluid. The presence of surfactant leads to a significant change in the structure of the transverse flow regions under the main hump of the wave. Besides, capillary precursor and backflow in it are suppressed.