Abstract
The paper presents the results of numerical simulation of the flow of a thin liquid layer with a free surface. The simulation was performed at moderate Reynolds numbers within the framework of the partial differential equation for the state of the free surface of the film. Equation coefficients include various physicochemical factors, namely surface tension, and temperature gradients. Computational experiments are carried out for a thin layer of a viscous liquid. The modes of free runoff, evaporation and counter flow are investigated. The values of the wave characteristics are found. The flows of a liquid film with the maximum value of the growth rate are identified. Such modes have been recorded in experimental studies by other scientists. The results of modeling the wave surface of a liquid film in Python are presented. The results can be used in the design or modernization of existing equipment, as well as in the development of technological processes in liquid films.
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