NEGATIVE VISCOSITY EFFECT IN THREE-DIMENSIONAL FLOWS.

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Abstract

The paper treats the stability of a periodic unidirectional three-dimensional flow. It is shown that at sufficiently high Reynolds numbers a flow of this type is unstable to long-wave disturbances. This instability can be interpreted in terms of negative effective viscosity of the corresponding large-scale flow.

Original languageEnglish
Pages (from-to)1137-1140
Number of pages4
JournalJournal De Physique
Volume47
Issue number7
DOIs
StatePublished - 1986
Externally publishedYes

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