Polymers suppress the inverse transfers of energy and the enstrophy flux fluctuations in two-dimensional turbulence.
The addition of minute amounts of a flexible polymer to two-dimensional turbulence produced in fast-flowing soap films affects large scales and small scales differently. For large scales, the inverse transfers of energy are suppressed. For small scales, where mean quantities are barely affected, the enstrophy flux fluctuations are significantly reduced, making the flow less chaotic.
Kellay
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CPMOH, Université de Bordeaux I, 351 Cours de la Libération, 33405 Talence, France.