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
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发表时间:
2005
期刊:
影响因子:
--
通讯作者:
W. Wahl
中科院分区:
文献类型:
--
作者:
R. Kaiser;A. Tilgner;W. Wahl
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.