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On the vanishing viscosity limit in a disk
We say that a solution of the Navier–Stokes equations converges in the vanishing viscosity limit to a solution of the Euler equations if their velocities converge in the energy ( L 2 ) norm uniformly in time as the viscosity ν vanishes. We show that a necessary and sufficient condition for the vanis...
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Published in: | Mathematische annalen 2009-03, Vol.343 (3), p.701-726 |
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Main Author: | |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | We say that a solution of the Navier–Stokes equations converges in the vanishing viscosity limit to a solution of the Euler equations if their velocities converge in the energy (
L
2
) norm uniformly in time as the viscosity
ν
vanishes. We show that a necessary and sufficient condition for the vanishing viscosity limit to hold in a disk is that the space–time energy density of the solution to the Navier–Stokes equations in a boundary layer of width proportional to
ν
vanish with
ν
, and that one need only consider spatial variations whose frequencies in the radial or tangential direction lie in a band centered around 1/
ν
. |
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ISSN: | 0025-5831 1432-1807 |
DOI: | 10.1007/s00208-008-0287-3 |