The zero capillarity limit for the Euler-Korteweg system with no-flux boundary conditions

Fuente: arXiv
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Autori principali: Antonelli, Paolo, Cacchiò, Yuri
Natura: Preprint
Pubblicazione: 2025
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author Antonelli, Paolo
Cacchiò, Yuri
author_facet Antonelli, Paolo
Cacchiò, Yuri
contents In this article, we study the small dispersion limit of the Euler-Korteweg system in a domain with a smooth boundary and no-flux boundary conditions. We exploit a relative energy approach to study the convergence of finite energy weak solutions towards strong solutions to the compressible Euler system. Given the boundary conditions under consideration, our approach requires a correction for the limiting particle density, due to the appearance of a boundary layer. Unlike conditional result on the vanishing viscosity limit, our analysis does not require additional conditions on the lack of anomalous concentration of capillary energy. This is due to the fact that the boundary layer appearing in our context is weaker than the one formed in the vanishing viscosity limit. We believe this approach can be adapted to study similar singular limits involving non-trivial boundary conditions.
format Preprint
id arxiv_https___arxiv_org_abs_2510_27682
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle The zero capillarity limit for the Euler-Korteweg system with no-flux boundary conditions
Antonelli, Paolo
Cacchiò, Yuri
Analysis of PDEs
In this article, we study the small dispersion limit of the Euler-Korteweg system in a domain with a smooth boundary and no-flux boundary conditions. We exploit a relative energy approach to study the convergence of finite energy weak solutions towards strong solutions to the compressible Euler system. Given the boundary conditions under consideration, our approach requires a correction for the limiting particle density, due to the appearance of a boundary layer. Unlike conditional result on the vanishing viscosity limit, our analysis does not require additional conditions on the lack of anomalous concentration of capillary energy. This is due to the fact that the boundary layer appearing in our context is weaker than the one formed in the vanishing viscosity limit. We believe this approach can be adapted to study similar singular limits involving non-trivial boundary conditions.
title The zero capillarity limit for the Euler-Korteweg system with no-flux boundary conditions
topic Analysis of PDEs
url https://arxiv.org/abs/2510.27682