Recherche

Afficher tous les résultats pour

Accueil

Personne

Stephan Brunner

À propos
Confidentialité
Mentions légales

Graph Chatbot

Publications associées (128)

Page 6 sur 7

Verification of the Fourier-enhanced 3D finite element Poisson solver of the gyrokinetic full-f code PICLS

Stephan Brunner, Laurent Villard, Alberto Bottino, Moahan Murugappan

We introduce and derive the Fourier -enhanced 3D electrostatic field solver of the gyrokinetic full -f PIC code PICLS. The solver makes use of a Fourier representation in one periodic direction of the domain to make the solving of the system easily paralle ...

Elsevier2024

The impact of triangularity on plasma confinement: TCV experiments vs non-linear gyrokinetic modelling

Stephan Brunner, Antoine Pochelon, Laurent Villard, Stefano Coda, Martin Jucker, Yann Camenen, Jonathan Graves, Alessandro Marinoni

2007

Physics insight from plasma shaping experiments in the TCV tokamak

Stephan Brunner, Stefano Alberti, Roland Behn, Basil Duval, Ambrogio Fasoli, Timothy Goodman, Antoine Pochelon, Ivo Furno, Holger Reimerdes, Stefano Coda, Alberto Bottino, Andrea Scarabosio, Yann Camenen, Jonathan Graves, Alessandro Bortolon, Alessandro Marinoni

2007

A new quasilinear model for turbulent momentum transport in tokamaks with flow shear and plasma shaping

Stephan Brunner, Justin Richard Ball, Arnas Volcokas, Haomin Sun

In tokamak experiments, sufficiently strong E x B flow shear reduces turbulent transport, thereby improving the prospects for fusion power plants. It is therefore of great importance to efficiently explore parameter space to find where strong plasma flow c ...

IOP Publishing Ltd2024

Development of a grid-based gyro-kinetic simulation code

Stephan Brunner

2006

Development of a grid-based gyro-kinetic simulation code

Stephan Brunner

2006

Development of a Grid-Based Gyro-Kinetic Simulation Code

Stephan Brunner

2006

Particle-in-cell methods in edge plasma physics: the PICLS code

Stephan Brunner, Laurent Villard, Giovanni Di Giannatale

Over the past decades, multiple gyrokinetic codes have shown to be able to simulate turbulence and associated transport in the core of Tokamak devices. However, their application to the edge and scrape-off layer (SOL) region presents significant challenges ...

2025

Gyrokinetic simulations of shaping effects on turbulent heat and particle transport observed on the TCV tokamak

Stephan Brunner, Antoine Pochelon, Olivier Sauter, Laurent Villard, Yann Camenen, Alessandro Marinoni

2007

Clarifications to the limitations of the s-alpha equilibrium model for gyrokinetic computations of turbulence

Stephan Brunner, Laurent Villard, Sébastien Jolliet, Alessandro Marinoni

In the context of gyrokinetic flux-tube simulations of microturbulence in magnetized toroidal plasmas, different treatments of the magnetic equilibrium are examined. Considering the Cyclone DIII-D base case parameter set [Dimits et al., Phys. Plasmas 7, 96 ...

American Institute of Physics2009

3D warm effects for low-frequency wave propagation in magnetically confined plasmas

Stephan Brunner, Wilfred Anthony Cooper, Trach-Minh Tran, Laurent Villard

2007

Global and local gyrokinetic simulations of high-performance discharges in view of ITER

Stephan Brunner, Olivier Sauter, Laurent Villard

One of the key challenges for plasma theory and simulation in view of ITER is to enhance the understanding and predictive capability concerning high-performance discharges. This involves, in particular, questions about high-beta operation, ion temperature ...

IOP Publishing Ltd2013

Numerical study of turbulent eddy self-interaction in tokamaks with low magnetic shear. Part I: Linear simulations

Stephan Brunner, Justin Richard Ball, Arnas Volcokas

This study examines the impact of low and zero magnetic shear, along with rational values ofsafety factor, on linear mode behavior in tokamak plasmas. We focus on how magnetic field linetopology and parallel domain length influence linear mode structures a ...

IOP Publishing Ltd2025

Flux- and gradient-driven global gyrokinetic simulation of tokamak turbulence

Stephan Brunner, Olivier Sauter, Laurent Villard, Ben McMillan

The Eulerian gyrokinetic turbulence code GENE has recently been extended to a full torus code. Moreover, it now provides Krook-type sources for gradient-driven simulations where the profiles are maintained on average as well as localized heat sources for a ...

2011

Pullback Scheme Implementation in ORB5

Stephan Brunner, Laurent Villard, Alberto Bottino, Emmanuel Lanti, Noé Thomas Elie Ohana

The pullback scheme is implemented in the global gyrokinetic particle-in-cell code ORB5 (Jolliet et al., 2007[1]) to mitigate the cancellation problem in electromagnetic simulations. The equations and the discretisation used by the code are described. Nume ...

Elsevier2019

High- and Low-Confinement Modes in Simple Magnetized Toroidal Plasmas

Stephan Brunner, Paolo Ricci

American Physical Society2008

The role of electron-driven microinstabilities in particle transport observed during electron ITBs

Stephan Brunner, Olivier Sauter, Alberto Bottino, Emiliano Fable

2007

Three-dimensional warm plasma simulations for low-frequency waves

Stephan Brunner, Wilfred Anthony Cooper, Laurent Villard, Pavel Popovitch

2006

Quasilinear treatment of wave-particle interactions in the electron cyclotron range and its implementation in a gyrokinetic code

Stephan Brunner, Laurent Villard, Stefano Coda

A quasilinear operator for wave-particle interactions in the electron cyclotron range is derived using the cold plasma dispersion relation. The finite width of the beam implies a broadening of the resonance layer in the velocity space which allows the use ...

2021

Effect of non-adiabatic electron dynamics on the non-linear evolution of ion acoustic waves

Stephan Brunner

2006