No CrossRef data available.
Article contents
Existence of stationary vortex sheets for the 2D incompressible Euler equation
Published online by Cambridge University Press: 05 May 2022
Abstract
We construct a new type of planar Euler flows with localized vorticity. Let
$\kappa _i\not =0$
,
$i=1,\ldots , m$
, be m arbitrarily fixed constants. For any given nondegenerate critical point
$\mathbf {x}_0=(x_{0,1},\ldots ,x_{0,m})$
of the Kirchhoff–Routh function defined on
$\Omega ^m$
corresponding to
$(\kappa _1,\ldots , \kappa _m)$
, we construct a family of stationary planar flows with vortex sheets that have large vorticity amplitude and concentrate on curves perturbed from small circles centered near
$x_{0,i}$
,
$i=1,\ldots ,m$
. The proof is accomplished via the implicit function theorem with suitable choice of function spaces.
Keywords
MSC classification
- Type
- Article
- Information
- Copyright
- © The Author(s), 2022. Published by Cambridge University Press on behalf of The Canadian Mathematical Society
Footnotes
This work was supported by the NNSF of China Grant (No. 11831009).