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Bounds for the threshold amplitude for plane Couette flow

Analysis of PDEs 2007-05-23 v1

Abstract

We prove nonlinear stability for finite amplitude perturbations of plane Couette flow. A bound of the solution of the resolvent equation in the unstable complex half-plane is used to estimate the solution of the full nonlinear problem.The result is a lower bound, including Reynolds number dependence,of the threshold amplitude below which all perturbations are stable. Our result is an improvement of the corresponding bound derived in \cite{KLH:1}.

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Cite

@article{arxiv.math/0302028,
  title  = {Bounds for the threshold amplitude for plane Couette flow},
  author = {Mattias Liefvendahl and Gunilla Kreiss},
  journal= {arXiv preprint arXiv:math/0302028},
  year   = {2007}
}

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arxiv version is already official