Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1897172 | Physica D: Nonlinear Phenomena | 2015 | 5 Pages |
Abstract
A phenomenological two-fluid model of the (time-reversible) spectrally-truncated 3D3D Euler equation is proposed. The thermalized small scales are first shown to be quasi-normal. The effective viscosity and thermal diffusion are then determined, using EDQNM closure and Monte-Carlo numerical computations. Finally, the model is validated by comparing its dynamics with that of the original truncated Euler equation.
Keywords
Related Topics
Physical Sciences and Engineering
Mathematics
Applied Mathematics
Authors
Giorgio Krstulovic, Marc-Étienne Brachet,