15th European Turbulence Conference 2015
August 25-28th, 2015, Delft, The Netherlands
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A numerical analysis of detailed energy transfers in elastic-wave turbulence


Go-down etc15 Tracking Number 256

Presentation:
Session: Vortex Dynamics 3
Room: Room B
Session start: 10:30 Wed 26 Aug 2015

Naoto Yokoyama   yokoyama@kuaero.kyoto-u.ac.jp
Affifliation: Kyoto University

Masanori Takaoka   mtakaoka@mail.doshisha.ac.jp
Affifliation: Doshisha University


Topics: - Transport and mixing, - Vortex dynamics and structure formation, - Intermittency and scaling

Abstract:

Triad interaction functions in elastic-wave turbulence are numerically investigated to show detailed energy transfers due to nonlinear interactions among wavenumbers. The energy exchange is active between the small-wavenumber stretching energy and the large-wavenumber kinetic energy. It is indicated that these nonlocal interactions carry the energy from the small-wavenumber forcing range to the large-wavenumber dissipation range.