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Simulating nonlinear wavy flow modes developing in a thin horizontal layer of heavy liquid entrained by a gas flow

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Thermophysics and Aeromechanics Aims and scope

Abstract

The paper considers nonlinear waves generated on a surface of a horizontal liquid layer put into an assigned stress field at the gas-liquid interface. The nature of branching for wavy modes from the undisturbed flow was studied. To accomplish this, the solution of a model nonlinear equation written for the deviation of the layer thickness from the undisturbed layer is found. Analytical solutions were constructed for nonlinear steady state-travelling solutions of this equation with the wavenumbers belonging to the vicinity of neutral wavenumbers. Steady state-travelling periodic solutions for the first family were simulated for the case of wavenumbers beyond this vicinity.

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Correspondence to O. Yu. Tsvelodub.

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Research was performed in the frameworks of a government plan for IT SB RAS (AAAA-A17-117022850024-4).

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Tsvelodub, O.Y. Simulating nonlinear wavy flow modes developing in a thin horizontal layer of heavy liquid entrained by a gas flow. Thermophys. Aeromech. 26, 861–867 (2019). https://doi.org/10.1134/S0869864319060076

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  • DOI: https://doi.org/10.1134/S0869864319060076

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