English

Energy Conservation and Vanishing Viscosity Limit for the Primitive Equations

Analysis of PDEs 2025-05-22 v1

Abstract

In this paper, we consider the problem of energy conservation for weak solutions of the inviscid Primitive Equations (PE) in a bounded domain. Based on the work [Bardos et al., Onsager's conjecture with physical boundaries and an application to the vanishing viscosity limit, Comm. Math. Phys., 2019, 291-310], we prove the energy conservation for PE with boundary condition under suitable Onsager-type assumptions. But due to the special structure of PE system and its domain, some new challenging difficulties arise: the lack of information about the vertical velocity, and existing corner points in the domain. We introduce some new ideas to overcome the above obstacles. As a byproduct, we give a sufficient condition for absence of anomalous energy dissipation in the vanishing viscosity limit.

Keywords

Cite

@article{arxiv.2505.15658,
  title  = {Energy Conservation and Vanishing Viscosity Limit for the Primitive Equations},
  author = {Šárka Nečasová and Tong Tang and Emil Wiedemann and Lu Zhu},
  journal= {arXiv preprint arXiv:2505.15658},
  year   = {2025}
}

Comments

19 pages, 2 figures