4.5 Article

Confinement properties of L-mode plasmas in ASDEX Upgrade and full-radius predictions of the TGLF transport model

Related references

Note: Only part of the references are listed.
Article Physics, Fluids & Plasmas

Advances in prediction of tokamak experiments with theory-based models

G. M. Staebler et al.

Summary: Successful validation of theory-based models with tokamak measurements lays the foundation for routine use of these models to predict the outcomes of experiments. Developing the ability to predict plasma confinement and core profiles is crucial for fusion energy research.

NUCLEAR FUSION (2022)

Article Physics, Fluids & Plasmas

The updated ITPA global H-mode confinement database: description and analysis

G. Verdoolaege et al.

Summary: This paper presents the upgraded International Tokamak Physics Activity (ITPA) Global H-mode Confinement Database, and uses regression analysis to estimate global energy confinement scaling in H-mode plasmas. Different subsets of the database are considered, revealing characteristics and trends under various confinement conditions.

NUCLEAR FUSION (2021)

Article Physics, Fluids & Plasmas

Geometry dependence of the fluctuation intensity in gyrokinetic turbulence

G. M. Staebler et al.

Summary: The investigation focuses on the properties of 3D saturated fluctuation intensity of electric potential in gyrokinetic turbulence simulations, using linear eigenmodes and geometry shape functions to construct a model for accurate calculation of electron and ion energy flux poloidal wavenumber spectrum. New insights are gained into the way zonal flow mixing saturates ion-scale turbulence by controlling the radial wavenumber width of the turbulence spectrum.

PLASMA PHYSICS AND CONTROLLED FUSION (2021)

Article Physics, Fluids & Plasmas

Validation of a full-plasma integrated modeling approach on ASDEX Upgrade

T. Luda et al.

Summary: This work presents the extensive validation of a refined version of the integrated model based on engineering parameters (IMEP). The updated model demonstrates high accuracy in predicting plasma confinement changes and different operating modes in 50 test cases. This approach shows potential to improve fusion performance prediction in future tokamak reactors.

NUCLEAR FUSION (2021)

Article Physics, Fluids & Plasmas

Towards fully-predictive transport modelling in ASDEX Upgrade H-modes

G. Tardini et al.

Summary: The use of scaling laws for predicting energy confinement has limitations, while dimensionless physics can provide a reliable basis. Integrated modeling techniques allow simulation from the separatrix to plasma center without experimental input, improving prediction accuracy.

NUCLEAR FUSION (2021)

Article Physics, Fluids & Plasmas

Validation of quasi-linear turbulent transport models against plasmas with dominant electron heating for the prediction of ITER PFPO-1 plasmas

C. K. Kiefer et al.

Summary: The study tested the quasi-linear transport models TGLF and QuaLiKiz against experimental results, finding good agreement between profiles obtained from TGLF-SAT1geo and experimental profiles for electron and ion temperatures. However, there is a slight tendency for the model to underpredict central temperatures at high electron/ion temperature ratios.

NUCLEAR FUSION (2021)

Article Physics, Fluids & Plasmas

Edge turbulent transport toward the L-H transition in ASDEX Upgrade and JET-ILW

N. Bonanomi et al.

Summary: This study combines experimental observations and gyrokinetic simulations to investigate the evolution of edge turbulence in the L-mode with different isotopes. The dominant role of edge ion temperature profile in the evolution of edge radial electric field is found, with different isotopes requiring different input power to achieve similar values. Gyrokinetic simulations indicate a key role of main ion mass dependency in determining the L-H power thresholds with different isotopes.

PHYSICS OF PLASMAS (2021)

Article Physics, Fluids & Plasmas

Overview of the isotope effects in the ASDEX Upgrade tokamak

P. A. Schneider et al.

Summary: Measurements on the ASDEX Upgrade tokamak and modelling for plasmas with hydrogen and deuterium have improved understanding of the ion mass dependencies in fusion plasmas. The observed isotope effects can be explained with established physics processes, pointing to the importance of coupled electron and ion heat channels. Mass dependence of turbulent transport and heat transport play key roles in core confinement and the L-H transition.

PLASMA PHYSICS AND CONTROLLED FUSION (2021)

Article Physics, Fluids & Plasmas

Verification of a quasi-linear model for gyrokinetic turbulent transport

G. M. Staebler et al.

Summary: This paper verifies and calibrates a new quasi-linear transport model based on a large database of gyrokinetic turbulence simulations. The modification of a key parameter in the model is found to be necessary for better fitting temperature and density gradients. The new model shows significantly improved fit in electron and ion energy fluxes compared to previous saturation models, leading to revisions in related models.

NUCLEAR FUSION (2021)

Article Physics, Fluids & Plasmas

Understanding LOC/SOC phenomenology in tokamaks

J. E. Rice et al.

NUCLEAR FUSION (2020)

Article Nuclear Science & Technology

Estimation and Uncertainties of Profiles and Equilibria for Fusion Modeling Codes

R. Fischer et al.

FUSION SCIENCE AND TECHNOLOGY (2020)

Article Physics, Fluids & Plasmas

Perturbative transport modeling of cold-pulse dynamics in Alcator C-Mod Ohmic plasmas

P. Rodriguez-Fernandez et al.

NUCLEAR FUSION (2019)

Article Physics, Fluids & Plasmas

Predict-first experiments and modeling of perturbative cold pulses in the DIII-D tokamak

P. Rodriguez-Fernandez et al.

PHYSICS OF PLASMAS (2019)

Article Computer Science, Interdisciplinary Applications

TORBEAM 2.0, a paraxial beam tracing code for electron-cyclotron beams in fusion plasmas for extended physics applications

E. Poli et al.

COMPUTER PHYSICS COMMUNICATIONS (2018)

Article Physics, Fluids & Plasmas

Global gyrokinetic simulations of intrinsic rotation in ASDEX Upgrade Ohmic L-mode plasmas

W. A. Hornsby et al.

NUCLEAR FUSION (2018)

Article Physics, Fluids & Plasmas

RABBIT: Real-time simulation of the NBI fast-ion distribution

M. Weiland et al.

NUCLEAR FUSION (2018)

Article Physics, Fluids & Plasmas

Theory-based modeling of LOC-SOC transitions in ASDEX Upgrade

I. Erofeev et al.

NUCLEAR FUSION (2017)

Article Physics, Fluids & Plasmas

On the effect of neoclassical flows on intrinsic momentum in ASDEX Upgrade Ohmic L-mode plasmas

W. A. Hornsby et al.

NUCLEAR FUSION (2017)

Article Physics, Fluids & Plasmas

A model of the saturation of coupled electron and ion scale gyrokinetic turbulence

G. M. Staebler et al.

NUCLEAR FUSION (2017)

Article Instruments & Instrumentation

Extensions to the charge exchange recombination spectroscopy diagnostic suite at ASDEX Upgrade

R. M. McDermott et al.

REVIEW OF SCIENTIFIC INSTRUMENTS (2017)

Article Physics, Fluids & Plasmas

L-H transition physics in hydrogen and deuterium: key role of the edge radial electric field and ion heat flux

F. Ryter et al.

PLASMA PHYSICS AND CONTROLLED FUSION (2016)

Article Computer Science, Interdisciplinary Applications

A high-accuracy Euleriangyrokinetic solver for collisional plasmas

J. Candy et al.

JOURNAL OF COMPUTATIONAL PHYSICS (2016)

Article Physics, Fluids & Plasmas

The role of zonal flows in the saturation of multi-scale gyrokinetic turbulence

G. M. Staebler et al.

PHYSICS OF PLASMAS (2016)

Article Physics, Fluids & Plasmas

Heuristic drift-based model of the power scrape-off width in low-gas-puff H-mode tokamaks

R. J. Goldston

NUCLEAR FUSION (2012)

Article Physics, Fluids & Plasmas

Effect of electron cyclotron resonance heating (ECRH) on toroidal rotation in ASDEX Upgrade H-mode discharges

R. M. McDermott et al.

PLASMA PHYSICS AND CONTROLLED FUSION (2011)

Article Physics, Fluids & Plasmas

Nonlinear Dynamics in the Tokamak Edge

B. D. Scott et al.

CONTRIBUTIONS TO PLASMA PHYSICS (2010)

Article Physics, Fluids & Plasmas

Calculation and experimental test of the cooling factor of tungsten

T. Puetterich et al.

NUCLEAR FUSION (2010)

Article Physics, Fluids & Plasmas

Estimation of profiles of the effective ion charge at ASDEX Upgrade with Integrated Data Analysis

S. K. Rathgeber et al.

PLASMA PHYSICS AND CONTROLLED FUSION (2010)

Article Physics, Fluids & Plasmas

Validating a quasi-linear transport model versus nonlinear simulations

A. Casati et al.

NUCLEAR FUSION (2009)

Article Physics, Fluids & Plasmas

Gyrokinetic simulation tests of quasilinear and tracer transport

R. E. Waltz et al.

PHYSICS OF PLASMAS (2009)

Article Physics, Fluids & Plasmas

The toroidal momentum diffusivity in a tokamak plasma: A comparison of fluid and kinetic calculations

D. Strintzi et al.

PHYSICS OF PLASMAS (2008)

Article Physics, Fluids & Plasmas

The first transport code simulations using the trapped gyro-Landau-fluid model

J. E. Kinsey et al.

PHYSICS OF PLASMAS (2008)

Article Physics, Fluids & Plasmas

Modelling of measured tungsten spectra from ASDEX Upgrade and predictions for ITER

T. Puetterich et al.

PLASMA PHYSICS AND CONTROLLED FUSION (2008)

Article Physics, Fluids & Plasmas

A new gyrokinetic quasilinear transport model applied to particle transport in tokamak plasmas

C. Bourdelle et al.

PHYSICS OF PLASMAS (2007)

Article Physics, Fluids & Plasmas

A theory-based transport model with comprehensive physics

G. M. Staebler et al.

PHYSICS OF PLASMAS (2007)

Article Physics, Fluids & Plasmas

Gyro-Landau fluid equations for trapped and passing particles

GM Staebler et al.

PHYSICS OF PLASMAS (2005)

Article Physics, Fluids & Plasmas

Gyrokinetic simulation of collisionless trapped-electron mode turbulence

T Dannert et al.

PHYSICS OF PLASMAS (2005)

Article Physics, Fluids & Plasmas

Electron temperature gradient driven turbulence

F Jenko et al.

PHYSICS OF PLASMAS (2000)