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Existence of Leray's Self-Similar Solutions of the Navier-Stokes Equations In $\mathcal{D}\,\subset \,{{\mathbb{R}}^{3}}$
Published online by Cambridge University Press: 20 November 2018
Abstract
Leray's self-similar solution of the Navier-Stokes equations is defined by
where $y\,=\,x/\sqrt{2\sigma ({{t}^{*}}\,-\,t)},\,\sigma \,>\,0$. Consider the equation for $U(y)$ in a smooth bounded domain $\mathcal{D}$ of ${{\mathbb{R}}^{3}}$ with non-zero boundary condition:
We prove an existence theorem for the Dirichlet problem in Sobolev space ${{W}^{1,2}}(\mathcal{D})$. This implies the local existence of a self-similar solution of the Navier-Stokes equations which blows up at $t\,=\,{{t}^{*}}$ with ${{t}^{*}}\,<\,+\infty $, provided the function $\mathcal{G}(y)$ is permissible.
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- Copyright © Canadian Mathematical Society 2004