Coherent transport structures in magnetized plasmas II: Numerical results

@article{Giannatale2017CoherentTS,
  title={Coherent transport structures in magnetized plasmas II: Numerical results},
  author={Giovanni di Giannatale and Matteo Valerio Falessi and Daniela Grasso and Francesco Pegoraro and T. J. Schep},
  journal={arXiv: Plasma Physics},
  year={2017}
}
In a pair of linked articles (called Article I and II respectively) we apply the concept of Lagrangian Coherent Structures borrowed from the study of Dynamical Systems to magnetic field configurations in order to separate regions where field lines have different kind of behavior. In the present article, article II, by means of a numerical procedure we investigate the Lagrangian Coherent Structures in the case of a two-dimensional magnetic configuration with two island chains that are generated… 
View PDF on arXiv
5 Citations
Highly Influential Citations
1
Background Citations
1

5 Citations

Coherent transport structures in magnetized plasmas, I : Theory

In a pair of linked articles (called Article I and II respectively) we apply the concept of Lagrangian Coherent Structures (LCSs) borrowed from the study of Dynamical Systems to magnetic field…

Resonance overlap and nonlinear features of the beam–plasma system

The beam-plasma instability can be addressed as a reduced model in several contexts of plasma physics, from space to fusion plasma. In this paper, we review and refine some non-linear features of…

Lagrangian Coherent Structures as a new frame to investigate the particle transport in highly chaotic magnetic systems

The concept of Lagrangian Coherent Structures (LCS) is here applied to investigate in a new perspective the particles transport in chaotic magnetic configurations. A paradigmatic and simplified…

Helically self-organized pinches: dynamical regimes and magnetic chaos healing

This paper deals with helical self-organization in current-carrying toroidal pinches for the magnetic confinement of fusion plasmas. We perform our study in the framework of 3D nonlinear…

Evolution, Structure, and Topology of Self-generated Turbulent Reconnection Layers

We present a 3D MHD simulation of two merging flux ropes exhibiting self-generated and self-sustaining turbulent reconnection (SGTR) that is fully 3D and fast. The exploration of SGTR is crucial for…

References

SHOWING 1-7 OF 7 REFERENCES

Coherent transport structures in magnetized plasmas, I : Theory

In a pair of linked articles (called Article I and II respectively) we apply the concept of Lagrangian Coherent Structures (LCSs) borrowed from the study of Dynamical Systems to magnetic field…

Aspects of three-dimensional magnetic reconnection

The nonlinear behavior of reconnecting modes in three spatial dimensions (3D) is investigated, on the basis of a collisionless fluid model in slab geometry, assuming a strong constant guide field in…

Barriers in the transition to global chaos in collisionless magnetic reconnection. I. Ridges of the finite time Lyapunov exponent field

The transitional phase from local to global chaos in the magnetic field of a reconnecting current layer is investigated. Regions where the magnetic field is stochastic exist next to regions where the…

Lagrangian coherent structures and mixing in two-dimensional turbulence

Stable and unstable invariant manifolds in a partially chaotic magnetic configuration generated by nonlinear reconnection

A numerical contour dynamics code has been employed to calculate the stable and unstable manifolds related to two interacting magnetic island chains. The magnetic configuration is generated by a…

LCS Tool: A computational platform for Lagrangian coherent structures

On guiding centre orbits of particles in toroidal systems

Passing particles in toroidal geometry are described in a Hamiltonian formalism including time-dependent electric and magnetic fields. These particles are characterized by a non-vanishing toroidal…