English

Anisotropic micropolar fluids subject to a uniform microtorque: the unstable case

Analysis of PDEs 2020-10-01 v2

Abstract

We study a three-dimensional, incompressible, viscous, micropolar fluid with anisotropic microstructure on a periodic domain. Subject to a uniform microtorque, this system admits a unique nontrivial equilibrium. We prove that this equilibrium is nonlinearly unstable. Our proof relies on a nonlinear bootstrap instability argument which uses control of higher-order norms to identify the instability at the L2L^2-level.

Keywords

Cite

@article{arxiv.1910.12942,
  title  = {Anisotropic micropolar fluids subject to a uniform microtorque: the unstable case},
  author = {Antoine Remond-Tiedrez and Ian Tice},
  journal= {arXiv preprint arXiv:1910.12942},
  year   = {2020}
}