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JETP Letters

, Volume 108, Issue 8, pp 519–526 | Cite as

Experimental Simulation of the Generation of a Vortex Flow on a Water Surface by a Wave Cascade

  • S. V. Filatov
  • A. V. Orlov
  • M. Yu. Brazhnikov
  • A. A. LevchenkoEmail author
Plasma, Hydro- and Gas Dynamics
  • 7 Downloads

Abstract

The generation of a vortex flow by waves on a water surface, which simulate an energy cascade in a system of gravity waves at frequencies of 3, 4, 5, and 6 Hz, has been studied experimentally. It has been found that pumping is accompanied by the propagation of waves on the surface at different angles to the fundamental mode and by a nonlinear interaction between waves resulting in the generation of new harmonics. It has been shown that large-scale flows are formed by modes of the lowest frequency of 3 Hz intersecting at acute angles. The energy distribution of the vortex motion can be described by a power-law function of the wavenumber and is independent of the energy distribution in a system of surface waves. The energy coming to large-scale vortex flows directly from the wave system is transferred to small scales. A direct rather than inverse energy flux is established in the system of vortices.

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Copyright information

© Pleiades Publishing, Inc. 2018

Authors and Affiliations

  • S. V. Filatov
    • 1
  • A. V. Orlov
    • 1
  • M. Yu. Brazhnikov
    • 1
  • A. A. Levchenko
    • 1
    • 2
    Email author
  1. 1.Institute of Solid State PhysicsRussian Academy of SciencesChernogolovkaRussia
  2. 2.Astrakhan State UniversityAstrakhanRussia

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