We construct semi-integral curves which bound the projections of the global attractors of the 3D NS-alpha and 3D Leray-alpha sub-grid scale turbulence models in the plane spanned by their energy and enstrophy. We note the dependence of these bounds on the filter width parameter alpha, and determine subregions where each quantity, energy and enstrophy, must decrease, while isolating one which is recurrent.
机构:
Univ Fed Rio de Janeiro, Ilha Fdn, Inst Matemat, BR-21941909 Rio De Janeiro, RJ, BrazilUniv Fed Rio de Janeiro, Ilha Fdn, Inst Matemat, BR-21941909 Rio De Janeiro, RJ, Brazil
Bronzi, Anne
Rosa, Ricardo
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机构:
Univ Fed Rio de Janeiro, Ilha Fdn, Inst Matemat, BR-21941909 Rio De Janeiro, RJ, BrazilUniv Fed Rio de Janeiro, Ilha Fdn, Inst Matemat, BR-21941909 Rio De Janeiro, RJ, Brazil