Yannick Ponty

27
Documents

Publications

Publications

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Intermittency in fluid and magnetohydrodynamics (MHD) turbulence analyzed through the prism of moment scaling predictions of multifractal models

Annick Pouquet , Raffaele Marino , Hélène Politano , Yannick Ponty , Duane Rosenberg
Nonlinear Processes in Geophysics, 2025, 32 (3), pp.243-259. ⟨10.5194/npg-32-243-2025⟩
Article dans une revue hal-05399218 v1
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Intermittency assessed through a model of kurtosis–skewness relation in MHD in fast dynamo regimes

Yannick Ponty , Hélène Politano , Annick Pouquet
Journal of Plasma Physics, 2025, 91 (2), pp.E69. ⟨10.1017/S0022377825000169⟩
Article dans une revue hal-05399217 v1

Systematic Route to Subcritical Dynamo Branches

Paul Mannix , Yannick Ponty , Florence Marcotte
Physical Review Letters, 2022, 129 (2), pp.024502. ⟨10.1103/physrevlett.129.024502⟩
Article dans une revue hal-03862091 v1
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Dynamo Enhancement and Mode Selection Triggered by High Magnetic Permeability

S. Kreuzahler , Y. Ponty , Nicolas Plihon , H. Homann , R. Grauer
Physical Review Letters, 2017, 119 (23), ⟨10.1103/PhysRevLett.119.234501⟩
Article dans une revue hal-02399083 v1
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Depletion of Nonlinearity in Magnetohydrodynamic Turbulence: Insights from Analysis and Simulations

John D. Gibbon , Anupam Gupta , Giorgio Krstulovic , Rahul Pandit , Hélène Politano et al.
Physical Review E : Statistical, Nonlinear, and Soft Matter Physics [2001-2015], 2016, 93 (4), pp.043104. ⟨10.1103/PhysRevE.93.043104⟩
Article dans une revue hal-01288496 v1
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Transition from Large-Scale to Small-Scale Dynamo

Yannick Ponty , F. Plunian
Physical Review Letters, 2011, 106, pp.154502. ⟨10.1103/PhysRevLett.106.154502⟩
Article dans une revue hal-00632675 v1

Spectral Modeling of Rotating Turbulent Flows

J. Baerenzung , P.D Mininni , Annick Pouquet , Hélène Politano , Yannick Ponty
Physics of Fluids, 2010, 22, pp.025104. ⟨10.1063/1.3292008⟩
Article dans une revue hal-00544191 v1

Dissipative structures in a nonlinear dynamo

A.D. Gilbert , Yannick Ponty , V. Zheligovsky
Geophysical and Astrophysical Fluid Dynamics, 2010, pp.1029-0419. ⟨10.1080/03091929.2010.513332⟩
Article dans une revue hal-00630854 v1
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Spectral modeling of turbulent flows and the role of helicity

J. Baerenzung , Hélène Politano , Yannick Ponty , Annick Pouquet
Physical Review E : Statistical, Nonlinear, and Soft Matter Physics [2001-2015], 2008, 77, pp.46303. ⟨10.1103/PhysRevE.77.046303⟩
Article dans une revue hal-00382451 v1
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Effect of the Lorentz force on on-off dynamo intermittency

A. Alexakis , Yannick Ponty
Physical Review E : Statistical, Nonlinear, and Soft Matter Physics [2001-2015], 2008, 77, pp.56308. ⟨10.1103/PhysRevE.77.056308⟩
Article dans une revue hal-00382445 v1
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Spectral modeling of magnetohydrodynamic turbulent flows

J. Baerenzung , Hélène Politano , Yannick Ponty , Annick Pouquet
Physical Review E : Statistical, Nonlinear, and Soft Matter Physics [2001-2015], 2008, 78, pp.26310. ⟨10.1103/PhysRevE.78.026310⟩
Article dans une revue hal-00382450 v1
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Effect of the Lorentz force on on-off dynamo intermittency

A. Alexakis , Yannick Ponty
Physical Review E : Statistical, Nonlinear, and Soft Matter Physics [2001-2015], 2008, 78, pp.026310. ⟨10.1103/PhysRevE.77.056308⟩
Article dans une revue hal-00382446 v1

Linear and non-linear features of the Taylor-Green dynamo

Yannick Ponty , Pablo D. Mininni , Jean-Philippe Laval , Alexandros Alexakis , Julien Baerenzung et al.
Comptes Rendus. Physique, 2008, 9 (7), pp.749-756. ⟨10.1016/j.crhy.2008.07.007⟩
Article dans une revue hal-00367358 v1
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Dynamo action at low magnetic Prandtl numbers: mean flow versus fully turbulent motions

Yannick Ponty , P.D. Mininni , J.F. Pinton , Hélène Politano , Annick Pouquet
New Journal of Physics, 2007, 9, pp.296. ⟨10.1088/1367-2630/9/8/296⟩
Article dans une revue hal-00388153 v1
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Subcritical Dynamo Bifurcation in the Taylor-Green Flow

Yannick Ponty , J.P. Laval , Bérengère Dubrulle , F. Daviaud , J.F. Pinton
Physical Review Letters, 2007, 99, pp.224501. ⟨10.1103/PhysRevLett.99.224501⟩
Article dans une revue hal-00388152 v1
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Numerical Study of Dynamo Action at Low Magnetic Prandtl Numbers

Yannick Ponty , P. D. Mininni , D. C. Montgomery, , Jean-François Pinton , Helene Politano et al.
Physical Review Letters, 2005, 94, pp.164502
Article dans une revue hal-00163671 v1
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Numerical Study of Dynamo Action at Low Magnetic Prandtl Numbers

Yannick Ponty , Pablo Mininni , David Montgomery , Jean-François Pinton , Hélène Politano et al.
Physical Review Letters, 2005, 94, pp.164502
Article dans une revue ensl-00180691 v1

Dynamo action in flows with cat's eyes

A. Courvoisier , A.D. Gilbert , Yannick Ponty
Geophysical and Astrophysical Fluid Dynamics, 2005, 99, pp.413-429. ⟨10.1080/03091920500334159⟩
Article dans une revue hal-00388258 v1
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Numerical study of dynamo action at low magnetic Prandtl numbers

Yannick Ponty , P. D. Mininni , D. C. Montgomery , Jean-François Pinton , Hélène Politano et al.
Physical Review Letters, 2005, 94, pp.164502. ⟨10.1103/PhysRevLett.94.164502⟩
Article dans une revue hal-00133225 v1
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Dynamo regimes with a nonhelical forcing

Pablo Mininni , Yannick Ponty , David Montgomery , Jean-François Pinton , Hélène Politano et al.
The Astrophysical Journal Letters, 2005, 626 (2), pp.853-863
Article dans une revue ensl-00180586 v1
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Simulation of induction at low magnetic Prandtl number

Yannick Ponty , Helene Politano , Jean-François Pinton
Physical Review Letters, 2004, 92 (14), pp.144503
Article dans une revue hal-00163375 v1
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A new instability for finite Prandtl number rotating convection with free-slip boundary conditions

Yannick Ponty , Thierry Passot , Pierre-Louis Sulem
Physics of Fluids, 1997, 9 (1), pp.67-75
Article dans une revue hal-00163677 v1
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Rôle de la turbulence sur l'effet dynamo et l'induction magnétique

Yannick Ponty
Mécanique des fluides [physics.class-ph]. Université Nice Sophia Antipolis, 2012
HDR tel-00922148 v1