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arXiv · 1808.09290

Two-Dimensional Vortex Sheets for the Nonisentropic Euler Equations: Nonlinear Stability

Alessandro Morando·Paola Trebeschi·Tao Wang
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Abstract

We show the short-time existence and nonlinear stability of vortex sheets for the nonisentropic compressible Euler equations in two spatial dimensions, based on the weakly linear stability result of Morando--Trebeschi (2008) [20]. The missing normal derivatives are compensated through the equations of the linearized vorticity and entropy when deriving higher-order energy estimates. The proof of the resolution for this nonlinear problem follows from certain \emph{a priori} tame estimates on the effective linear problem {in the usual Sobolev spaces} and a suitable Nash--Moser iteration scheme.

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Alessandro Morando, Paola Trebeschi, Tao Wang. 2018-08-25. Two-Dimensional Vortex Sheets for the Nonisentropic Euler Equations: Nonlinear Stability. https://doi.org/10.1016/j.jde.2018.10.029

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