EMPIRICAL AND STOKES EIGENFUNCTIONS AND THE FAR-DISSIPATIVE TURBULENT SPECTRUM

被引:58
作者
FOIAS, C
MANLEY, O
SIROVICH, L
机构
[1] US DOE,OFF BASIC ENERGY SCI,DIV ENGN & GEOSCI,WASHINGTON,DC 20545
[2] BROWN UNIV,CTR FLUID MECH TURBULENCE & COMPUTAT,PROVIDENCE,RI 02912
[3] BROWN UNIV,DIV APPL MATH,PROVIDENCE,RI 02912
来源
PHYSICS OF FLUIDS A-FLUID DYNAMICS | 1990年 / 2卷 / 03期
关键词
D O I
10.1063/1.857744
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
It is shown that the Stokes eigenfunctions and their corresponding spectra, frequently used in mathematical investigations of the Navier-Stokes equations, provide estimates on the spectrum of the two-point spatial covariance tensor. This, in turn, is used to estimate the far-dissipative turbulent spectrum. An exponential falloff is predicted and evidence given which implies that this is a sharp estimate. © 1990 American Institute of Physics.
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页码:464 / 467
页数:4
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