Waves at the Interface with Countercurrent Flow of a Thin Film of Liquid and Turbulent Gas Flow in a Narrow Vertical Channel
O. Yu. Tsvelodub
Kutateladze Institute of Thermophysics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
Keywords: thin film of liquid, turbulent gas flow, evolution equation, periodic disturbances
Abstract
The countercurrent flow of a falling liquid film and a turbulent gas flow in a narrow vertical channel is considered. In the case of small Reynolds numbers and when certain conditions are met for the parameters of such a flow, the problem reduces to the study of one evolutionary integrodifferential equation for the deviation of the film thickness from the unperturbed level. A numerical study of the evolution of periodic disturbances has been carried out. Several solutions to the model equation are presented
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