Abstract.
A self-similar solution of the three-dimensional (3d) incompressible Euler equations is defined by \(u(x,t) = U(y)/(t^* - t)^\alpha ,\;y = x/(t^* - t)^\beta ,\alpha ,\beta > 0,\) where U(y) satisfies
For \(\alpha = \beta = 1/2,\) which is the limiting case of Leray’s self-similar Navier–Stokes equations, we prove the existence of \((U,P) \in H^3 (\Omega ,\mathbb{R}^3 \times \mathbb{R})\) in a smooth bounded domain Ω, with the inflow boundary data of non-zero vorticity. This implies the possibility that solutions of the Euler equations blow up at a time \(t = t^* ,t^* < + \infty .\)
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He, X. Existence of Singular Self-Similar Solutions of the Three-Dimensional Euler Equations in a Bounded Domain. J. math. fluid mech. 6, 389–404 (2004). https://doi.org/10.1007/s00021-003-0098-y
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DOI: https://doi.org/10.1007/s00021-003-0098-y