A Generalized Energy Functional for Plane Couette Flow

A Generalized Energy Functional for Plane Couette Flow
复制标题

平面库埃特流的广义能量泛函

DOI:
10.1137/s0036141004442604
复制
发表时间:
2005
期刊:
SIAM J. Math. Anal.
影响因子:
--
通讯作者:
W. Wahl
W. Wahl
中科院分区:
--
文献类型:
--
作者:
R. Kaiser;A. Tilgner;W. Wahl

文献摘要

被引文献

相似文献

对于平面Couette流,我们给出了一个广义能量泛函E,它在雷诺数Re=177.2$以下具有条件的非线性稳定性,大于通常的能量稳定性极限。该方法允许在${cal E}^{1/2}$-范数下显式计算所谓的稳定性球,即系统对于这个球中的$\cal E}^{1/2}$-范数的任何扰动都是稳定的。
We present a generalized energy functional ${\cal E}$ for plane Couette flow providing conditional nonlinear stability for Reynolds numbers ${\rm Re}$ below ${\rm Re_{\cal E}} := 177.2$, which is larger than the ordinary energy stability limit. The method allows the explicit calculation of so-called stability balls in the ${\cal E}^{1/2}$-norm; i.e., the system is stable with respect to any perturbation with ${\cal E}^{1/2}$-norm in this ball.