Nonlinear stability of Ekman boundary layers in rotating stratified fluids
著者
書誌事項
Nonlinear stability of Ekman boundary layers in rotating stratified fluids
(Memoirs of the American Mathematical Society, no. 1073)
American Mathematical Society, c2013
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注記
"March 2014, volume 228, number 1073 (fifth of 5 numbers)."
Includes bibliographical references (p. 125-127)
内容説明・目次
内容説明
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.
目次
Introduction
Formulation and Main Results
Linearized Problem
Existence of Global Weak Solutions
Uniqueness of Weak Solutions
Nonlinear Stability
Smoothness of Weak Solutions
Some Extensions of the Theory
Appendix A. Toolbox
Bibliography
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