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On the lifespan of axisymmetric incompressible Euler equations with a small initial swirl: On the lifespan of axisymmetric incompressible Euler equations

Published: 02 November 2024 Publication History

Abstract

We show the lifespan of a strong solution to the incompressible 3D axially symmetric Euler system in R3 can be arbitrarily large if the initial swirl is small enough. A precise lower bound of the lifespan, depending on the size of ×(v0,θeθ)L, is given. This extends the conclusion of Danchin (Proc Am Math Soc 141:1979–1993, 2012), in which the domain must be distant from the axis of symmetry. This may help us to have a better understanding of the nonlinear framework and the blowup mechanism inherent in the 3D axisymmetric Euler equations.

References

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Danchin R Remarks on the lifespan of the solutions to some models of incompressible fluid mechanics Proc. Am. Math. Soc. 2012 141 1979-1993
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            Published In

            cover image Zeitschrift für Angewandte Mathematik und Physik (ZAMP)
            Zeitschrift für Angewandte Mathematik und Physik (ZAMP)  Volume 75, Issue 6
            Dec 2024
            930 pages

            Publisher

            Birkhauser Verlag

            Switzerland

            Publication History

            Published: 02 November 2024
            Accepted: 11 October 2024
            Revision received: 09 October 2024
            Received: 30 May 2024

            Author Tags

            1. Incompressible Euler equations
            2. Axially symmetric
            3. Small swirl
            4. Lifespan

            Author Tags

            1. 35Q35
            2. 76D05

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