Geodesic acoustic modes in magnetic confinement devices
GD Conway, AI Smolyakov, T Ido - Nuclear Fusion, 2021 - iopscience.iop.org
Geodesic acoustic modes (GAMs) are ubiquitous oscillatory flow phenomena observed in
toroidal magnetic confinement fusion plasmas, such as tokamaks and stellarators. They are …
toroidal magnetic confinement fusion plasmas, such as tokamaks and stellarators. They are …
Kinetic theory of geodesic acoustic modes in toroidal plasmas: a brief review
Geodesic acoustic modes (GAM) are oscillating zonal structures unique to toroidal plasmas,
and have been extensively studied in the past decades due to their potential capabilities of …
and have been extensively studied in the past decades due to their potential capabilities of …
The JOREK non-linear extended MHD code and applications to large-scale instabilities and their control in magnetically confined fusion plasmas
JOREK is a massively parallel fully implicit non-linear extended magneto-hydrodynamic
(MHD) code for realistic tokamak X-point plasmas. It has become a widely used versatile …
(MHD) code for realistic tokamak X-point plasmas. It has become a widely used versatile …
ORB5: a global electromagnetic gyrokinetic code using the PIC approach in toroidal geometry
This paper presents the current state of the global gyrokinetic code Orb 5 as an update of the
previous reference (Jolliet et al., 2007). The Orb 5 code solves the electromagnetic Vlasov …
previous reference (Jolliet et al., 2007). The Orb 5 code solves the electromagnetic Vlasov …
Gyrokinetic investigation of Alfvén instabilities in the presence of turbulence
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 …
particles (EPs) in the presence of ion-temperature-gradient turbulence is investigated, by …
Gyrokinetic modeling of anisotropic energetic particle driven instabilities in tokamak plasmas
B Rettino, T Hayward-Schneider, A Biancalani… - Nuclear …, 2022 - iopscience.iop.org
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 …
driven geodesic acoustic modes in tokamaks. We study the effects of anisotropy of …
Shaping effects on the geodesic acoustic mode in tokamaks
The geodesic acoustic mode (GAM) is investigated with gyro-kinetic equations in Miller local
equilibrium model for shaped tokamak plasmas with an arbitrary elongation κ and a finite …
equilibrium model for shaped tokamak plasmas with an arbitrary elongation κ and a finite …
Global linear and nonlinear gyrokinetic simulations of tearing modes
T Jitsuk, A Di Siena, MJ Pueschel, PW Terry… - Nuclear …, 2024 - iopscience.iop.org
To better understand multi-scale interactions between global tearing modes and
microturbulence in the Madison Symmetric Torus (MST) reversed-field pinch (RFP), the …
microturbulence in the Madison Symmetric Torus (MST) reversed-field pinch (RFP), the …
Saturation of energetic-particle-driven geodesic acoustic modes due to wave–particle nonlinearity
The nonlinear dynamics of energetic-particle (EP) driven geodesic acoustic modes (EGAM)
is investigated here. A numerical analysis with the global gyrokinetic particle-in-cell code …
is investigated here. A numerical analysis with the global gyrokinetic particle-in-cell code …
Linear gyrokinetic investigation of the geodesic acoustic modes in realistic tokamak configurations
In order to provide scaling formulae for the geodesic acoustic mode (GAM) frequency and
damping rate, GAMs are studied by means of the gyrokinetic global particle-in-cell code …
damping rate, GAMs are studied by means of the gyrokinetic global particle-in-cell code …