English

On global regular axially-symmetric solutions to the Navier-Stokes equations in a cylinder

Analysis of PDEs 2026-02-04 v2

Abstract

We consider the axisymmetric Navier-Stokes equations in a finite cylinder ΩR3\Omega\subset\mathbb{R}^3. We assume that vrv_r, vφv_\varphi, ωφ\omega_\varphi vanish on the lateral part of boundary Ω\partial\Omega of the cylinder, and that vzv_z, ωφ\omega_\varphi, zvφ\partial_zv_\varphi vanish on the top and bottom parts of the boundary Ω\partial\Omega, where we used standard cylindrical coordinates, and we denoted by ω=curlv\omega= {\rm curl}\, v the vorticity field. Our aim is to derive the estimate ωrrV(Ω×(0,t))+ωφrV(Ω×(0,t))ϕ(data), \left\|\frac{\omega_{r}}{r}\right\|_{V\left(\Omega\times (0,t)\right)}+\left\|\frac{\omega_{\varphi}}{r}\right\|_{V\left(\Omega\times (0,t)\right)} \leq \phi(\operatorname{data}), where ϕ\phi is an increasing positive function and  V(Ω×(0,t))\|\ \|_{V\left(\Omega\times (0,t)\right)} is the energy norm. We are not able to derive any global type estimate for nonslip boundary conditions.

Keywords

Cite

@article{arxiv.2511.05098,
  title  = {On global regular axially-symmetric solutions to the Navier-Stokes equations in a cylinder},
  author = {Wiesław J. Grygierzec and Wojciech M. Zajączkowski},
  journal= {arXiv preprint arXiv:2511.05098},
  year   = {2026}
}

Comments

arXiv admin note: substantial text overlap with arXiv:2507.14964, arXiv:2405.16670, arXiv:2501.18302