15th European Turbulence Conference 2015
August 25-28th, 2015, Delft, The Netherlands
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Hamiltonian formalism for weak turbulence of inertial waves in rotating fluids


Go-down etc15 Tracking Number 469

Presentation:
Session: Instability and Transition 6
Room: Room A
Session start: 15:00 Thu 27 Aug 2015

Andrey A Gelash   agelash@gmail.com
Affifliation: Novosibirsk State University, Novosibirsk, Russia

Vladimir E Zakharov   vezakh@gmail.com
Affifliation: Novosibirsk State University, Novosibirsk, Russia; Lebedev Physical Institute, Russian Academy of Sciences, Moscow, Russia; University of Arizona, Tucson, AZ, USA.


Topics: - Instability and transition, - Lagrangian aspects of turbulence

Abstract:

We present the Hamiltonian description of incompressible rotating fluid by using the Clebsch variables. We find the transformation which allows us to present the three-wave interaction Hamiltonian in normal variables in simple explicit form. We analyze the three-wave interaction amplitude and find new anisotropic spectra. Finally we study the convergence of integrals and present the kinetic equation.