Implementation of energy transfer technique in ORB5 to study collisionless wave-particle interactions in phase-space
@article{Novikau2019ImplementationOE, title={Implementation of energy transfer technique in ORB5 to study collisionless wave-particle interactions in phase-space}, author={I. Novikau and Alessandro Biancalani and Alberto Bottino and Alessandro Di Siena and Philipp Lauber and Emanuele Poli and Emmanuel Lanti and Laurent Villard and No{\'e} Ohana and Sergio Briguglio}, journal={Comput. Phys. Commun.}, year={2019}, volume={262}, pages={107032} }
10 Citations
Nonlinear dynamics of energetic-particle driven geodesic acoustic modes in ASDEX Upgrade
- Physics
- 2019
Turbulence in tokamaks generates radially sheared zonal flows (ZFs). Their oscillatory counterparts, geodesic acoustic modes (GAMs), appear due to the action of the magnetic field curvature. The GAMs…
Gyrokinetic investigation of the nonlinear interaction of Alfvén instabilities and energetic particle-driven geodesic acoustic modes
- PhysicsPhysics of Plasmas
- 2021
This paper presents a study of the interaction between Alfven modes and zonal structures, considering a realistic ASDEX Upgrade equilibrium. The results of gyrokinetic simulations with the global,…
Analysis of the nonlinear dynamics of a chirping-frequency Alfv\'en mode in a Tokamak equilibrium
- Physics
- 2021
Chirping Alfvén modes are considered as potentially harmful for the confinement of energetic particles in burning Tokamak plasmas because of their capability, by modifying their frequency, of…
Gyrokinetic modeling of anisotropic energetic particle driven instabilities in tokamak plasmas
- PhysicsNuclear Fusion
- 2022
Energetic particles produced by neutral beams are observed to excite energetic-particle-driven geodesic acoustic modes in tokamaks. We study the effects of anisotropy of distribution function of the…
Gyrokinetic investigation of Alfvén instabilities in the presence of turbulence
- PhysicsPlasma Physics and Controlled Fusion
- 2021
The nonlinear dynamics of beta-induced Alfvén eigenmodes (BAEs) driven by energetic particles (EPs) in the presence of ion-temperature-gradient turbulence is investigated, by means of selfconsistent…
The systematic investigation of energetic-particle-driven geodesic acoustic mode channeling using MEGA code
- PhysicsNuclear Fusion
- 2020
Energetic-particle-driven geodesic acoustic modes (EGAMs) channeling in the Large Helical Device (LHD) plasmas are systematically investigated for the first time using MEGA code. MEGA is a hybrid…
Effect of the electron redistribution on the nonlinear saturation of Alfvén eigenmodes and the excitation of zonal flows
- PhysicsJournal of Plasma Physics
- 2020
Numerical simulations of Alfvén modes driven by energetic particles are performed with the gyrokinetic (GK) global particle-in-cell code ORB5. A reversed shear equilibrium magnetic field is adopted.…
Gyrokinetic investigation of the damping channels of Alfvén modes in ASDEX Upgrade
- PhysicsPhysics of Plasmas
- 2020
The linear destabilization and nonlinear saturation of energetic-particle driven Alfvenic instabilities in tokamaks strongly depend on the damping channels. In this work, the collisionless damping…
Gyrokinetic modelling of the Alfvén mode activity in ASDEX Upgrade with an isotropic slowing-down fast-particle distribution
- PhysicsNuclear Fusion
- 2022
In the present paper, the evolution of the Alfvén modes (AMs) is studied in a realistic ASDEX Upgrade equilibrium by analyzing the results of simulations with the global, electromagnetic, gyrokinetic…
Evidence of ‘two plasmon’ decay of energetic particle induced geodesic acoustic mode
- Physics
- 2021
Secondary low frequency mode generation by energetic particle induced geodesic acoustic mode (EGAM) observed in LHD experiment is studied using nonlinear gyrokinetic theory. It is found that the EGAM…
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