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A free boundary inviscid model of flow-structure interaction

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arxiv 2205.12103 v1 pith:C3SHSAGR submitted 2022-05-24 math.AP

classification math.AP
keywords existencedatafluidinitialinteractioninviscidsystemboundary
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abstract

We obtain the local existence and uniqueness for a system describing interaction of an incompressible inviscid fluid, modeled by the Euler equations, and an elastic plate, represented by the fourth-order hyperbolic PDE. We provide a~priori estimates for the existence with the optimal regularity $H^{r}$, for $r>2.5$, on the fluid initial data and construct a unique solution of the system for initial data $u_0\in H^{r}$ for $r\geq3$. An important feature of the existence theorem is that the Taylor-Rayleigh instability does not occur.

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  1. The Euler equations with variable coefficients

    math.AP 2025-09 conditional novelty 7.0 of 10

    Local existence for variable-coefficient 3D Euler at optimal regularity r>2.5, plus a BKM blow-up criterion at r=3 involving BMO vorticity and H1 velocity.

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