21 citations · 57 across the 7 of their papers we have counts for
7 papers
Zonal fields as catalysts and inhibitors of turbulence-driven magnetic islands
Daniele Villa, Nicolas Dubuit, Olivier Agullo +1
A novel coalescence process is shown to take place in plasma fluid simulations, leading to the formation of large-scale magnetic islands that become dynamically important in the sy…
Characterizing current structures in 3D hybrid-kinetic simulations of plasma turbulence
Manuela Sisti, Sid Fadanelli, Silvio Sergio Cerri +3
In space and astrophysical plasmas turbulence leads to the development of coherent structures characterized by a strong current density and important magnetic shears. Using hybrid-…
Scaling laws in axisymmetric magnetohydrodynamic duct flows
A. Poyé, O. Agullo, N. Plihon +3
We report on a numerical study of axisymmetric flow of liquid metal in a circular duct with rectangular cross-section. The flow is forced through the combination of an axial magnet…
Asymptotic theory of magnetic island saturation in equilibria with a finite current gradient
Andrei Smolyakov, Alexander Poye, Olivier Agullo +2
A novel asymptotic matching procedure is developed to revisit the problem of magnetic island saturation in case of a finite current gradient at the rational surface. Nonlinear disp…
Shear flow effects on double tearing mode global magnetic reconnection
Thibaut Voslion, Olivier Agullo, Peter Beyer +5
The dynamics of a global reconnection in the presence of a poloidal shear flow which is located in between magnetic islands is investigated. Different linear regimes are identified…
From chaos of lines to Lagrangian structures in flux conservative fields
Xavier Leoncini, Olivier Agullo, Magali Muraglia +1
A numerical method is proposed in order to track field lines of three-dimensional divergence free fields. Field lines are computed by a locally valid Hamiltonian mapping, which is…
Anomalous transport in Charney-Hasegawa-Mima flows
Xavier Leoncini, Olivier Agullo, Sadruddin Benkadda +1
Transport properties of particles evolving in a system governed by the Charney-Hasegawa-Mima equation are investigated. Transport is found to be anomalous with a non linear evoluti…