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Enhancement of the inverse-cascade of energy in the two-dimensional Lagrangian-averaged navier-stokes equations

Abstract:

The recently derived Lagrangian-averaged Navier-Stokes equations model the large-scale flow of the Navier-Stokes fluid at spatial scales larger than some a priori fixed α>0, while coarse-graining the behavior of the small scales. In this communication, we numerically study the behavior of the two-dimensional (2D) isotropic version of this model, also known as the α model. The inviscid dynamics of this model exactly coincide with the vortex blob algorithm for a certain choice of smoothing k...

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Publisher copy:
10.1063/1.1359764

Authors


Nadiga, BT More by this author
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Mathematical Inst
Journal:
Physics of Fluids
Volume:
13
Issue:
5
Pages:
1528-1531
Publication date:
2001-05-05
DOI:
ISSN:
1070-6631
URN:
uuid:f87265b1-5532-455e-bd75-3e0097fcc7bb
Source identifiers:
404789
Local pid:
pubs:404789
Language:
English

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