Zobrazeno 1 - 10
of 359
pro vyhledávání: '"Bourgoin M"'
Publikováno v:
Phys. Rev. Fluids 7 (2022) 024301
The precise description of the motion of anisotropic particles in a flow rests on the understanding of the force and torque acting on them. Here, we study experimentally small, very elongated particles settling in a fluid at small Reynolds number. In
Externí odkaz:
http://arxiv.org/abs/2107.05918
We present the extension of a modeling technique for Lagrangian tracer particles [B. Viggiano et al., J. Fluid Mech.(2020), vol. 900, A27] which accounts for the effects of particle inertia. Thereby, the particle velocity for several Stokes numbers i
Externí odkaz:
http://arxiv.org/abs/2106.07183
Based on direct numerical simulations with point-like inertial particles, with Stokes numbers, $\textrm{St}=0, 0.5$, $3$, and $6$, transported by homogeneous and isotropic turbulent flows, we present in this letter for the first time evidence for the
Externí odkaz:
http://arxiv.org/abs/2104.03136
Publikováno v:
Phys. Rev. Fluids 6, 024609 (2021)
We analyze the vector nulls of velocity, Lagrangian acceleration, and vorticity, coming from direct numerical simulations of forced homogeneous isotropic turbulence at $Re_\lambda \in [40-610]$. We show that the clustering of velocity nulls is much s
Externí odkaz:
http://arxiv.org/abs/2010.12947
Autor:
Obligado, M., Bourgoin, M.
Publikováno v:
In Journal of Fluids and Structures October 2022 114
Autor:
Machicoane, N, López-Caballero, M, Fiabane, L, Pinton, J-F, Bourgoin, M, Burguete, J, Volk, R
Publikováno v:
Phys. Rev. E 93, 023118 (2016)
The long time dynamics of large particles trapped in two inhomogeneous turbulent shear flows is studied experimentally. Both flows present a common feature, a shear region that separates two colliding circulations, but with different spatial symmetri
Externí odkaz:
http://arxiv.org/abs/1512.07760
Autor:
Berhanu, M., Verhille, G., Boisson, J., Gallet, B., Gissinger, C., Fauve, S., Mordant, N, Pétrélis, F., Bourgoin, M., Odier, P., Pinton, J. -F, Plihon, N., Aumaître, S, Chiffaudel, A., Daviaud, F., Dubrulle, B., Pirat, C.
Publikováno v:
European Physical Journal B: Condensed Matter and Complex Systems, EDP Sciences: EPJ, 2010, 77, pp.459
The Von K{\'a}rm{\'a}n Sodium experiment yields a variety of dynamo regimes, when asymmetry is imparted to the flow by rotating impellers at different speed F1 and F2. We show that as the intensity of forcing, measured as F1 + F2, is increased, the t
Externí odkaz:
http://arxiv.org/abs/1504.03879
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
Publikováno v:
INTERNATIONAL JOURNAL OF MODERN PHYSICS B 23, 2009, 5483
Statistical properties of the temporal distribution of polarity reversals of the geomagnetic field are commonly assumed to be a realization of a renewal Poisson process with a variable rate. However, it has been recently shown that the polarity rever
Externí odkaz:
http://arxiv.org/abs/1003.0531
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