Zobrazeno 1 - 10
of 274
pro vyhledávání: '"B. Dubrulle"'
Publikováno v:
Nonlinear Processes in Geophysics, Vol 29, Pp 17-35 (2022)
According to everyone's experience, predicting the weather reliably over more than 8 d seems an impossible task for our best weather agencies. At the same time, politicians and citizens are asking scientists for climate projections several decades in
Externí odkaz:
https://doaj.org/article/0cba335499344a3289a6a4ab7a044c3a
Publikováno v:
Earth System Dynamics, Vol 10, Pp 365-378 (2019)
The representation of atmospheric convection induced by radiative forcing is a long-standing question mainly because turbulence plays a key role in the transport of energy as sensible heat, geopotential, and latent heat. Recent works have tried using
Externí odkaz:
https://doaj.org/article/6af66c07d7874f89827a177df9bd0b81
Experimental characterization of extreme events of inertial dissipation in a turbulent swirling flow
Autor:
E. -W. Saw, D. Kuzzay, D. Faranda, A. Guittonneau, F. Daviaud, C. Wiertel-Gasquet, V. Padilla, B. Dubrulle
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-8 (2016)
The classical description of viscous turbulent flows is based on a formulation of Navier-Stokes equations which assumes its solutions to remain smooth at all times. Saw et al. characterize velocity fields in experimental turbulent flows at dissipativ
Externí odkaz:
https://doaj.org/article/289215855046471f896aa2f68cbb4a4d
Publikováno v:
Nonlinear Processes in Geophysics, Vol 22, Iss 2, Pp 187-196 (2015)
We derive rigorous results on the link between the principle of maximum entropy production and the principle of maximum Kolmogorov–Sinai entropy for a Markov model of the passive scalar diffusion called the Zero Range Process. We show analytically
Externí odkaz:
https://doaj.org/article/9e3ba42cf896412ea23d84a57e0d5fc1
Publikováno v:
Earth System Dynamics, Vol 2, Iss 1, Pp 13-23 (2011)
Nonlinear feedbacks in the Earth System provide mechanisms that can prove very useful in understanding complex dynamics with relatively simple concepts. For example, the temperature and the ice cover of the planet are linked in a positive feedback wh
Externí odkaz:
https://doaj.org/article/63cfaaf6ab1344ff9602d44714adc7b9
Autor:
J Salort, F Chillà, E Rusaouën, P-E Roche, M Gibert, I Moukharski, A Braslau, F Daviaud, B Gallet, E-W Saw, B Dubrulle, P Diribarne, B Rousset, M Bon Mardion, J-P Moro, A Girard, C Baudet, V L’vov, A Golov, S Nazarenko
Publikováno v:
New Journal of Physics, Vol 23, Iss 6, p 063005 (2021)
Velocity measurements in turbulent superfluid helium between co-rotating propellers are reported. The parameters are chosen such that the flow is fully turbulent, and its dissipative scales are partly resolved by the velocity sensors. This allows for
Externí odkaz:
https://doaj.org/article/6be4fac6738644558e3cd994ad61504a
Akademický článek
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Publikováno v:
Chaos: An Interdisciplinary Journal of Nonlinear Science
Chaos: An Interdisciplinary Journal of Nonlinear Science, 2023, ⟨10.1063/5.0106053⟩
Chaos: An Interdisciplinary Journal of Nonlinear Science, 2023, ⟨10.1063/5.0106053⟩
Many natural systems show emergent phenomena at different scales, leading to scaling regimes with signatures of deterministic chaos at large scales and an apparently random behavior at small scales. These features are usually investigated quantitativ
Autor:
B. Dubrulle, J. D. Gibbon
Publikováno v:
Philosophical transactions. Series A, Mathematical, physical, and engineering sciences. 380(2218)
We study a correspondence between the multifractal model of turbulence and the Navier-Stokes equations in $d$ spatial dimensions by comparing their respective dissipation length scales. In Kolmogorov's 1941 theory the key parameter $h$, which is an e
Akademický článek
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