Electronic Journal Technical Acoustics ISSN 1819-2408

Sergey S. Voronkov

On turbulence in liquid

language: Russian

received 31.08.2021, published 08.10.2021

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ABSTRACT

Turbulence in liquids and gases is analyzed. Equations describing turbulence in Van der Waals gas are given. It is noted that when considering turbulence in liquids, as well as in gases, it is necessary to take into account the compressibility of the medium. The definition of turbulence in liquids and gases is given. The existence and smoothness of solutions of the Navier-Stokes equations are considered. It is shown that the discontinuous pressure behavior in a turbulent flow of liquid and gas follows not from the solutions of the Navier-Stokes equations in the approximation of the incompressibility of the medium, but from the solutions of a more general system of equations that take into account the compressibility and dissipation of energy.
Keywords: turbulence, Van der Waals gas, vector wave equation, Navier-Stokes equation.

7 pages, 2 figures

Сitation: Sergey S. Voronkov. On turbulence in liquid. Electronic Journal “Technical Acoustics”, http://www.ejta.org, 2021, 4.

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Sergey S. Voronkov graduated from Leningrad Polytechnic Institute (Russia) in 1979, PhD. Presently he is docent at Pskov State University. Scientific area: hydrodynamics, nonlinear acoustics. e-mail: voronkovss(at)yandex.ru