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arxiv: 0911.0741 · v1 · pith:IUD7FZ6Gnew · submitted 2009-11-04 · ⚛️ physics.comp-ph · physics.ao-ph· physics.flu-dyn

Influence of the condensate and inverse cascade on the direct cascade in wave turbulence

A.O. Korotkevich (1 , 2) ((1) Department of Mathematics , Statistics , University of New Mexico , Albuquerque , USA; (2) L.D. Landau Institute for Theoretical Physics , Moscow , Russia) This is my paper
classification ⚛️ physics.comp-ph physics.ao-phphysics.flu-dyn
keywords condensatecascadedirectturbulencewavelevelsartificialbackground
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During direct numerical simulation of the isotropic turbulence of surface gravity waves in the framework of Hamiltonian equations formation of the long wave background or condensate was observed. Exponents of the direct cascade spectra at the different levels of an artificial condensate suppression show a tendency to become closer to the prediction of the wave turbulence theory at lower levels of condensate. A simple qualitative explanation of the mechanism of this phenomenon is proposed.

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