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arXiv · 2009.03980

Enstrophy from symmetry

Raja Marjieh·Natalia Pinzani-Fokeeva·Amos Yarom
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Abstract

We study symmetry principles associated with the approximately conserved enstrophy current, responsible for the inverse {energy} cascade in non relativistic $2+1$ dimensional turbulence. We do so by identifying the accidental symmetry associated with enstrophy current conservation in a recently realized effective action principle for hydrodynamics. Our analysis deals with both relativistic and non relativistic effective actions and their associated symmetries.

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Raja Marjieh, Natalia Pinzani-Fokeeva, Amos Yarom. 2021-11-26. Enstrophy from symmetry. https://arxiv.org/abs/2009.03980

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