English

Subsonic time-periodic solution to damped compressible Euler equations with large entropy

Analysis of PDEs 2023-12-22 v1

Abstract

In this paper, one-dimensional nonisentropic compressible Euler equations with linear damping α(x)ρu\alpha(x)\rho u are analyzed.~We want to explore the conditions under which a subsonic temporal periodic boundary can trigger a time-periodic C1C^{1} solution. To achieve this aim, we use a technically constructed iteration scheme and give the sufficient conditions to guarantee the existence, uniqueness and stability of the C1C^{1} time-periodic solutions on the perturbation of a subsonic Fanno flow.~It is worthy to be pointed out that the entropy exhibits large amplitude under the assumption that the inflow sound speed is small.~However, it is crucial to assume that the boundary conditions possess a kind of dissipative structure at least on one side, which is used to cancel the nonlinear accelerating effect in the system.~The results indicate that the time-periodic feedback boundary control with dissipation can stabilize the nonisentropic compressible Euler equations around the Fanno flows.

Keywords

Cite

@article{arxiv.2312.13546,
  title  = {Subsonic time-periodic solution to damped compressible Euler equations with large entropy},
  author = {Peng Qu and Huimin Yu and Xiaomin Zhang},
  journal= {arXiv preprint arXiv:2312.13546},
  year   = {2023}
}

Comments

arXiv admin note: text overlap with arXiv:2207.13433

R2 v1 2026-06-28T13:58:17.130Z