Zobrazeno 1 - 10
of 544
pro vyhledávání: '"Berhanu, M"'
Autor:
Cazaubiel, A, Michel, G., Lepot, S, Semin, B, Aumaître, S, Berhanu, M, Bonnefoy, Félicien, Falcon, Eric
Publikováno v:
Physical Review Fluids, American Physical Society, 2018
We study experimentally, in a large-scale basin, the propagation of unidirectional deep water gravity waves stochastically modulated in phase. We observe the emergence of nonlinear localized structures that evolve on a stochastic wave background. Suc
Externí odkaz:
http://arxiv.org/abs/1810.07922
Publikováno v:
Infection and Drug Resistance, Vol Volume 15, Pp 3523-3535 (2022)
Abdulkerim Badgeba,1 Mulugeta Shegaze Shimbre,2 Mathewos Alemu Gebremichael,3 Biruk Bogale,4 Menur Berhanu,5 Hanan Abdulkadir6 1Department of Public Health, College of Medicine and Health Sciences, Werabe University, Werabe, Ethiopia; 2School of Publ
Externí odkaz:
https://doaj.org/article/5ce004a2b6424f91b1a44c9231dd3e39
Autor:
Bonnefoy, F., Haudin, F., Michel, G., Semin, B., Humbert, T., Aumaître, S., Berhanu, M., Falcon, E.
We experimentally study resonant interactions of oblique surface gravity waves in a large basin. Our results strongly extend previous experimental results performed mainly for perpendicular or collinear wave trains. We generate two oblique waves cros
Externí odkaz:
http://arxiv.org/abs/1606.09009
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:
Ravelet, F., Volk, R., Chiffaudel, A., Daviaud, F., Dubrulle, B., Monchaux, R., Bourgoin, M., Odier, P., Pinton, J. -F., Berhanu, M., Fauve, S., Mordant, N., Petrelis, F.
We study the flow response to an externally imposed homogeneous magnetic field in a turbulent swirling flow of liquid sodium -- the VKS2 experiment in which magnetic Reynolds numbers Rm up to 50 are reached. Induction effects are larger than in the f
Externí odkaz:
http://arxiv.org/abs/0704.2565
Autor:
Monchaux, R., Berhanu, M., Bourgoin, M., Moulin, M., Odier, Ph., Pinton, J. -F., Volk, R., Fauve, S., Mordant, N., Petrelis, F., Chiffaudel, A., Daviaud, F., Dubrulle, B., Gasquet, C., Marie, L., Ravelet, F.
We report the observation of dynamo action in the VKS experiment, i.e., the generation of magnetic field by a strongly turbulent swirling flow of liquid sodium. Both mean and fluctuating parts of the field are studied. The dynamo threshold correspond
Externí odkaz:
http://arxiv.org/abs/physics/0701075
Autor:
Berhanu, M., Monchaux, R., Fauve, S., Mordant, N., Petrelis, F., Chiffaudel, A., Daviaud, F., Dubrulle, B., Marie, L., Ravelet, F., Bourgoin, M., Odier, Ph., Pinton, J. -F., Volk, R.
We report the first experimental observation of reversals of a dynamo field generated in a laboratory experiment based on a turbulent flow of liquid sodium. The magnetic field randomly switches between two symmetric solutions B and -B. We observe a h
Externí odkaz:
http://arxiv.org/abs/physics/0701076
Autor:
Volk, R., Ravelet, F., Monchaux, R., Berhanu, M., Chiffaudel, A., Daviaud, F., Odier, Ph., Pinton, J. F., Fauve, S., Mordant, N., Petrelis, F.
We study the effect of a turbulent flow of liquid sodium generated in the von K\'arm\'an geometry, on the localized field of a magnet placed close to the frontier of the flow. We observe that the field can be transported by the flow on distances larg
Externí odkaz:
http://arxiv.org/abs/physics/0603210
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