Publications de Tilman Dannert

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Numerical simulations of electron temperature gradient (ETG) turbulence are presented that characterize the ETG fluctuation spectrum, establish limits to the validity of the adiabatic ion model often employed in studying ETG turbulence, and support the ten ...

Important steps towards the understanding of turbulent transport have been made with the development of the gyrokinetic framework for describing turbulence and with the emergence of numerical codes able to solve the set of gyrokinetic equations. This paper ...

Two global gyrokinetic codes are benchmarked against each other by comparing simulation results in the case of ion temperature gradient driven turbulence, in the adiabatic electron response limit The two codes are the Eulerian code GENE and the Lagrangian ...

Analytical and numerical work is used in tandem to address the problem of turbulent transport of energetic ions in magnetized plasmas. It is shown that orbit averaging is not valid under rather generic conditions, and that perpendicular decorrelation effec ...

Experimental observations on core particle and impurity transport from the Axial Symmetric Divertor Experiment Upgrade [O. Gruber, H.-S. Bosch, S. Gunter , Nucl Fusion 39, 1321 (1999)] and the Joint European Torus [J. Pamela, E. R. Solano, and JET EFDA Con ...

The understanding and prediction of transport due to plasma microturbulence is a key open problem in modern plasma physics, and a grand challenge for fusion energy research. Ab initio simulations of such small-scale, low-frequency turbulence are to be base ...

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 ...

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 ...

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Tilman Dannert

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Characterizing electron temperature gradient turbulence via numerical simulation

Gyrokinetic simulations of turbulent transport: size scaling and chaotic behaviour

Nonlinear quasisteady state benchmark of global gyrokinetic codes

Electrostatic and magnetic transport of energetic ions in turbulent plasmas

Particle and impurity transport in the Axial Symmetric Divertor Experiment Upgrade and the Joint European Torus, experimental observations and theoretical understanding

The global version of the gyrokinetic turbulence code GENE

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

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

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

The European turbulence code benchmarking effort: turbulence driven by thermal gradients in magnetically confined plasmas

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

Turbulent transport of beam ions

Turbulent transport of energetic ions

Gyrokinetic simulations of shaping effects on turbulent heat and particle transport

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

Anomalous transport of energetic particles in ITER relevant scenarios

Computational fusion plasma physics

Computational fusion plasma physics