6. Physics of a Fluid, Neutral and Ionized Gases

STUDY OF AMPLITUDE-FREQUENCY CHARACTERISTICS EVOLUTION OF WAVY DISTURBANCES IN FALLING LIQUID FILMS

Andrey N. Chernyavskiy
1. Institute of Thermophysics SB RAS Novosibirsk, Russian Federation
2. Novosibirsk State University Novosibirsk, Russian Federation
cherny@ngs.ru
Aleksandr N. Pavlenko
1. Institute of Thermophysics SB RAS Novosibirsk, Russian Federation
2. Novosibirsk State University Novosibirsk, Russian Federation
pavl@itp.nsc.ru
The material was received by the Editorial Board: 05.05.2011
The computer simulation of the wave generation process in falling films of liquid nitrogen has been implemented by using the Kapitsa-Shkadov hydrodynamics model. The different stages of evalution of the wavy disturbances have been considered. The calculation of the spectral power distribution of wavy disturbances has been done for different down-flow coordinates. The relation between amplitude changes of wavy disturbances and their spectral power evolution has been detected.

Keywords:
hydrodynamics, wave generation, liquid films, computer simulation.
УДК 532.5:532.59:532.62

STUDY OF AMPLITUDE-FREQUENCY CHARACTERISTICS EVOLUTION OF WAVY DISTURBANCES IN FALLING LIQUID FILMS
References: Chernyavskiy A. N., Pavlenko A. N. STUDY OF AMPLITUDE-FREQUENCY CHARACTERISTICS EVOLUTION OF WAVY DISTURBANCES IN FALLING LIQUID FILMS. Vestnik NSU. Series: Physics. 2011, vol. 6, no. 3. P. 50–58 (in Russ.). DOI: 10.54362/1818-7919-2011-6-3-50-58