Zobrazeno 1 - 10
of 115
pro vyhledávání: '"Diribarne, P."'
Autor:
Diribarne, P., Bon-Mardion, M., Girard, A., Moro, J. -P., Rousset, B., Chilla, F., Salort, J., Braslau, A., Daviaud, F., Dubrulle, B., Gallet, B., Moukharski, I., Saw, E. -W., Baudet, C., Gibert, M., Roche, P. -E., Rusaouen, E., Golov, A., L'vov, V., Nazarenko, S.
We report hot-wire measurements performed in two very different, co- and counter-rotating flows, in normal and superfluid helium at 1.6 K, 2 K, and 2.3 K. As recently reported, the power spectrum of the hot-wire signal in superfluid flows exhibits a
Externí odkaz:
http://arxiv.org/abs/2105.14801
Autor:
Diribarne, Pantxo, Rousset, Bernard, Sergeev, Yuri A., Noûs, Camille, Valentin, Jérôme, Roche, Philippe-Emmanuel
Publikováno v:
Phys. Rev. B 103, 144509 (2021)
Miniature heaters are immersed in flows of quantum fluid and the efficiency of heat transfer is monitored versus velocity, superfluid fraction and time. The fluid is $^4$He helium with a superfluid fraction varied from 71% down to 0% and an imposed v
Externí odkaz:
http://arxiv.org/abs/2101.03043
Publikováno v:
Phys. Rev. Fluids 6, 064604 (2021)
In this paper we present a novel hydrodynamic experiment using liquid $^4$He. The flow is forced inertially by a canonical oscillating grid using either its normal (He~I) or superfluid (He~II) phase, generating a statistically stationary turbulence.
Externí odkaz:
http://arxiv.org/abs/2011.11992
Akademický článek
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Autor:
Duri, Davide, Baudet, Christophe, Moro, Jean-Paul, Roche, Philippe-Emmanuel, Diribarne, Pantxo
In this paper, we report the first evidence of an enhancement of the heat transfer from a heated wire by an external turbulent flow of superfluid helium. We used a standard Pt-Rh hot-wire anemometer and overheat it up to 21 K in a pressurized liquid
Externí odkaz:
http://arxiv.org/abs/1410.0167
Autor:
VEZZANI, DARÍO, DIRIBARNE, IGNACIO, JOSÉ PALACIOS, JUAN, LOPEZ, JESICA, MARTINEZ, SOFÍA, WEIS, MARÍA DEL CARMEN, GENTILE, LUCIANO, CASTEX, ANDREA, DAMIANI, MIRNA, DEL BLANCO, NATACHA, CASTIGLIA SOLE, JUAN AGUSTÍN, ROZAS DENNIS, GABRIELA
Publikováno v:
Medicina (Buenos Aires); mar/abr2024, Vol. 84 Issue 2, p189-195, 7p
Akademický článek
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Autor:
Saint-Michel, B, Herbert, E, Salort, J, Baudet, C, Mardion, M Bon, Bonnay, P, Bourgoin, M, Castaing, B, Chevillard, L, Daviaud, F, Diribarne, P, Dubrulle, B, Gagne, Y, Gibert, M, Girard, A, Hébral, B, Lehner, Th, Rousset, B
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
Externí odkaz:
http://arxiv.org/abs/1401.7117
Autor:
Salort, J., Baudet, C., Castaing, B., Chabaud, B., Daviaud, F., Didelot, T., Diribarne, P., Dubrulle, B., Gagne, Y., Gauthier, F., Girard, A., Hébral, B., Rousset, B., Thibault, P., Roche, P. -E.
Publikováno v:
Physics of Fluids : Phys. Fluids 22 (2010) 125102
We present velocity spectra measured in three cryogenic liquid 4He steady flows: grid and wake flows in a pressurized wind tunnel capable of achieving mean velocities up to 5 m/s at temperatures above and below the superfluid transition, down to 1.7
Externí odkaz:
http://arxiv.org/abs/1202.0643
Autor:
Cortet, Pierre-Philippe, Diribarne, Pantxo, Monchaux, Romain, Chiffaudel, Arnaud, Daviaud, Francois, Dubrulle, Berengere
We introduce a global quantity $\delta$ that characterizes turbulent fluctuations in inhomogeneous anisotropic flows. This time-dependent quantity is based on spatial averages of global velocity fields rather than classical temporal averages of local
Externí odkaz:
http://arxiv.org/abs/0805.3092