Existence of homogeneous Euler flows of degree $-\alpha\notin [-2,0]$
Abstract
We consider ()-homogeneous solutions to the stationary incompressible Euler equations in for and in for . Shvydkoy (2018) demonstrated the nonexistence of ()-homogeneous solutions and ()-homogeneous solutions in the range for the Beltrami and axisymmetric flows. The nonexistence result of the Beltrami ()-homogeneous solutions holds for all . We show the nonexistence of axisymmetric ()-homogeneous solutions without swirls for . The main result of this study is the existence of axisymmetric ()-homogeneous solutions in the complementary range . More specifically, we show the existence of axisymmetric Beltrami ()-homogeneous solutions for and axisymmetric ()-homogeneous solutions with a nonconstant Bernoulli function for . This is the first existence result on ()-homogeneous solutions with no explicit forms. For , constructed ()-homogeneous solutions provide new examples of the Beltrami/Euler flows in whose level sets of the proportionality factor/Bernoulli surfaces are nested surfaces created by the rotation of the sign .
Keywords
Cite
@article{arxiv.2305.05987,
title = {Existence of homogeneous Euler flows of degree $-\alpha\notin [-2,0]$},
author = {Ken Abe},
journal= {arXiv preprint arXiv:2305.05987},
year = {2023}
}
Comments
69 pages