Additional Invariants and Statistical Equilibria for the 2D Euler Equations on a spherical domain
Statistical Mechanics
2013-08-13 v1 Fluid Dynamics
Abstract
The role of the domain geometry for the statistical mechanics of 2D Euler flows is investigated. It is shown that for a spherical domain, there exists invariant subspaces in phase space which yield additional angular momentum, energy and enstrophy invariants. The microcanonical measure taking into account these invariants is built and a mean-field, Robert-Sommeria-Miller theory is developed in the simple case of the energy-enstrophy measure. The variational problem is solved analytically and a partial energy condensation is obtained. The thermodynamic properties of the system are also discussed.
Cite
@article{arxiv.1307.5109,
title = {Additional Invariants and Statistical Equilibria for the 2D Euler Equations on a spherical domain},
author = {Corentin Herbert},
journal= {arXiv preprint arXiv:1307.5109},
year = {2013}
}