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Article Dans Une Revue Physics of Fluids Année : 2014

Probing quantum and classical turbulence analogy in von Kármán liquid helium, nitrogen, and water experiments

Patrick Bonnay
Pantxo Diribarne

Résumé

We report measurements of the dissipation in the Superfluid Helium high REynold number von Karman flow (SHREK) experiment for different forcing conditions, through a regime of global hysteretic bifurcation. Our macroscopical measurements indicate no noticeable difference between the classical fluid and the superfluid regimes, thereby providing evidence of the same dissipative anomaly and response to asymmetry in fluid and superfluid regime. %In the latter case, A detailed study of the variations of the hysteretic cycle with Reynolds number supports the idea that (i) the stability of the bifurcated states of classical turbulence in this closed flow is partly governed by the dissipative scales and (ii) the normal and the superfluid component at these temperatures (1.6K) are locked down to the dissipative length scale.
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Dates et versions

hal-01198372 , version 1 (15-09-2015)

Identifiants

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B Saint-Michel, Éric Herbert, Julien Salort, Christophe Baudet, Michel Bon-Mardion, et al.. Probing quantum and classical turbulence analogy in von Kármán liquid helium, nitrogen, and water experiments. Physics of Fluids, 2014, 26 (12), pp.125109. ⟨10.1063/1.4904378⟩. ⟨hal-01198372⟩
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