Work

Effective Dissipation and Turbulence in Spectrally Truncated Euler Flows

Year: 2005

Type: article

Abstract: A new transient regime in the relaxation towards absolute equilibrium of the conservative and time-reversible 3D Euler equation with a high-wave-number spectral truncation is characterized. Large-scale dissipative effects, caused by the thermalized modes that spontaneously appear between a transition wave number and the maximum wave number, are calculated using fluctuation dissipation relations. The large-scale dynamics is found to be similar to that of high-Reynolds number Navier-Stokes equations and thus obeys (at least approximately) Kolmogorov scaling.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.95.264502

Authors: Cyril Cichowlas, Pauline Bonaïti, Fabrice Debbasch, Marc Brachet

Institutions: Centre National de la Recherche Scientifique, École Normale Supérieure - PSL, Laboratoire de Physique de l'Ecole Normale Supérieure, Laboratoire d’Etudes du Rayonnement et de la Matière en Astrophysique et Atmosphères

Language: English

Topic: Fluid Dynamics and Turbulent Flows

Subfield: Computational Mechanics

Field: Engineering

Domain: Physical Sciences

Open Access status: bronze

OpenAlex ID: W2064882198

FWCI: 4.547

Cites: 23

Cited by: 170

Related to: 10