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Nonlinear Stability of Ekman Boundary Layers in Rotation Stratified Fluids

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Nonlinear Stability of Ekman Boundary Layers in Rotation Stratified Fluids Synopsis

A stationary solution of the rotating Navier-Stokes equations with a boundary condition is called an Ekman boundary layer. This book constructs stationary solutions of the rotating Navier-Stokes-Boussinesq equations with stratification effects in the case when the rotating axis is not necessarily perpendicular to the horizon. The author calls such stationary solutions Ekman layers. This book shows the existence of a weak solution to an Ekman perturbed system, which satisfies the strong energy inequality. Moreover, the author discusses the uniqueness of weak solutions and computes the decay rate of weak solutions with respect to time under some assumptions on the Ekman layers and the physical parameters. The author also shows that there exists a unique global-in-time strong solution of the perturbed system when the initial datum is sufficiently small. Comparing a weak solution satisfying the strong energy inequality with the strong solution implies that the weak solution is smooth with respect to time when time is sufficiently large.

About This Edition

ISBN: 9780821891339
Publication date:
Author: Hajime Koba
Publisher: American Mathematical Society
Format: Paperback
Pagination: 127 pages
Series: Memoirs of the American Mathematical Society
Genres: Differential calculus and equations
Mathematical physics