Open AccessChange in wave characteristics during the transition from gravitational to shear flow of gas-sheared liquid films
Author(s) -
Sergey V. Isaenkov,
Mikhail V. Cherdantsev,
Andrey V. Cherdantsev,
Д. М. Маркович
Publication year - 2019
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 - 10.1088/1742-6596/1382/1/012083
Subject(s) - mechanics , materials science , shear (geology) , reynolds number , shear flow , gravitational wave , flow (mathematics) , liquid flow , open channel flow , optics , physics , composite material , turbulence , astrophysics
The evolution of thin liquid films sheared by a co-current gas flow in a vertical cylindrical channel with an internal diameter of 11.7 mm was studied using a high-speed implementation of the laser-induced fluorescence method. The main purpose of the work was to study the characteristics of the waves during the transition from the gravitational to the shear flow regime. The effect of gas velocity, liquid Reynolds number, and liquid viscosity on wave characteristics has been studied.