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contributor authorHerring, Jackson R.
contributor authorRiley, James J.
contributor authorPatterson, G. S.
contributor authorKraichnan, Robert H.
date accessioned2017-06-09T14:17:02Z
date available2017-06-09T14:17:02Z
date copyright1973/09/01
date issued1973
identifier issn0022-4928
identifier otherams-16412.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4152193
description abstractComputer simulators are made of the growth of the difference-velocity field for pairs of realizations of isotropic, three-dimensional turbulence at Reynolds number R&lambda≈40. The simulations involve full-scale integration of the Navier-Stokes equation in the Fourier representation. It is found that the difference-velocity variance (error energy) grows with time even when the initial difference-velocity is confined to wave numbers strongly damped by viscosity. The numerical integrations are compared with results of the direct-interaction approximation (DIA). It is found that the DIA gives reasonably satisfactory quantitative agreement for the evolution of the error energy and the error. energy spectrum. What discrepancies there are represent an underestimate of error energy growth by the DIA. This is explained by theoretical analysis of the approximation.
publisherAmerican Meteorological Society
titleGrowth of Uncertainty in Decaying Isotropic Turbulence
typeJournal Paper
journal volume30
journal issue6
journal titleJournal of the Atmospheric Sciences
identifier doi10.1175/1520-0469(1973)030<0997:GOUIDI>2.0.CO;2
journal fristpage997
journal lastpage1006
treeJournal of the Atmospheric Sciences:;1973:;Volume( 030 ):;issue: 006
contenttypeFulltext


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