Turbulence inside vortex

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Presentation transcript:

Turbulence inside vortex Inverse cascades and condensates Thanks to V. Lebedev, E. Lindborg

condensation

Vortex sucks energy in and ejects vorticity out

Subtraction of the mean flow recovers more flat (5/3?) spectrum

Strong condensate changes sign of the third moment in the turbulence interval of scales Subtracting the mean flow restores the sign

Flux relation

Suppression of turbulence by a big vortex

Summary Condensates appear because of the inverse cascades Condensates can suppress turbulence that feeds them Condensates can enhance and suppress fluctuations in different systems Negative third velocity moment does not negate an inverse cascade

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