Mathematics – Analysis of PDEs
Scientific paper
2003-02-03
J. Nonlinear Math. Phys., volume 9, no. 3 (2002) 311-324
Mathematics
Analysis of PDEs
arxiv version is already official
Scientific paper
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}.
Kreiss Gunilla
Liefvendahl Mattias
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