Kinetic simulations of scrape-off layer physics in the DIII-D tokamak
Sign Up to like & getrecommendations! Published in 2017 at "Nuclear materials and energy"
DOI: 10.1016/j.nme.2016.12.013
Abstract: Abstract Simulations using the fully kinetic code XGCa were undertaken to explore the impact of kinetic effects on scrape-off layer (SOL) physics in DIII-D H-mode plasmas. XGCa is a total-f, gyrokinetic code which self-consistently calculates… read more here.
Keywords: sol; diii tokamak; physics diii; physics ... See more keywords
Influence of plasma background including neutrals on scrape-off layer filaments using 3D simulations
Sign Up to like & getrecommendations! Published in 2017 at "Nuclear materials and energy"
DOI: 10.1016/j.nme.2017.02.016
Abstract: This paper investigates the effect of the plasma background, including neutrals in a self-consistent way, on filaments in the scrape-off layer (SOL) of fusion devices. A strong dependency of filament motion on background density and… read more here.
Keywords: plasma background; background including; background; including neutrals ... See more keywords
Impact of ICRF on the scrape-off layer and on plasma wall interactions: From present experiments to fusion reactor
Sign Up to like & getrecommendations! Published in 2019 at "Nuclear Materials and Energy"
DOI: 10.1016/j.nme.2018.11.017
Abstract: Abstract Recent achievements in studies of the effects of ICRF (Ion Cyclotron Range of Frequencies) power on the SOL (Scrape-Off Layer) and PWI (Plasma Wall Interactions) in ASDEX Upgrade (AUG), Alcator C-Mod, and JET-ILW are… read more here.
Keywords: scrape layer; plasma wall; impact icrf; wall interactions ... See more keywords
A drift-kinetic analytical model for scrape-off layer plasma dynamics at arbitrary collisionality
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Plasma Physics"
DOI: 10.1017/s002237781700085x
Abstract: A drift-kinetic model to describe the plasma dynamics in the scrape-off layer region of tokamak devices at arbitrary collisionality is derived. Our formulation is based on a gyroaveraged Lagrangian description of the charged particle motion,… read more here.
Keywords: drift kinetic; plasma; plasma dynamics; scrape layer ... See more keywords
Stability of scrape-off layer plasma: A modified Rayleigh–Bénard problem
Sign Up to like & getrecommendations! Published in 2019 at "Physics of Plasmas"
DOI: 10.1063/1.5064765
Abstract: We present an extensive linear stability analysis of a two-dimensional fluid model used to study the plasma dynamics in the scrape-off layer of tokamaks. The model equations are based on the Braginskii fluid equations under… read more here.
Keywords: stability scrape; plasma; problem; scrape layer ... See more keywords
Shaping effects on scrape-off layer plasma turbulence: A rigorous validation of three-dimensional simulations against TCV measurements
Sign Up to like & getrecommendations! Published in 2020 at "Physics of Plasmas"
DOI: 10.1063/1.5123451
Abstract: The effect of plasma shaping on scrape-off layer (SOL) plasma turbulence is investigated through a rigorous validation exercise. Two- and three-dimensional simulations of the SOL plasma dynamics in three TCV limited discharges are carried out… read more here.
Keywords: three dimensional; plasma; validation; plasma turbulence ... See more keywords
Effect of electromagnetic wave reflection from conducting surfaces on blob dynamics in the tokamak scrape-off layer
Sign Up to like & getrecommendations! Published in 2023 at "Physics of Plasmas"
DOI: 10.1063/5.0140097
Abstract: Electromagnetic dynamics of blobs in hot scrape-off-layer plasmas of the tokamak are affected by excitation of the Alfvén waves and their subsequent propagation to the machine first wall along open magnetic field lines. In this… read more here.
Keywords: blob dynamics; reflection; scrape layer; alfv waves ... See more keywords
Stochastic modeling of blob-like plasma filaments in the scrape-off layer: Theoretical foundation
Sign Up to like & getrecommendations! Published in 2022 at "Physics of Plasmas"
DOI: 10.1063/5.0144885
Abstract: A stochastic model for a superposition of uncorrelated pulses with a random distribution of amplitudes, sizes, and velocities is presented. The pulses are assumed to move radially with fixed shape and amplitudes decaying exponentially in… read more here.
Keywords: stochastic modeling; plasma filaments; blob like; like plasma ... See more keywords
Blob properties in full-turbulence simulations of the TCV scrape-off layer
Sign Up to like & getrecommendations! Published in 2017 at "Plasma Physics and Controlled Fusion"
DOI: 10.1088/1361-6587/aa6276
Abstract: To investigate blob properties in the tokamak scrape-off layer (SOL), we perform dedicated numerical nonlinear simulations of plasma turbulence in the SOL of a TCV discharge using the Global Braginskii Solver code. A blob detection… read more here.
Keywords: blob properties; blob; turbulence; full turbulence ... See more keywords
Probability distribution functions for intermittent scrape-off layer plasma fluctuations
Sign Up to like & getrecommendations! Published in 2018 at "Plasma Physics and Controlled Fusion"
DOI: 10.1088/1361-6587/aa9f9c
Abstract: A stochastic model for intermittent fluctuations in the scrape-off layer of magnetically confined plasmas has been constructed based on a super-position of uncorrelated pulses arriving according to a Poisson process. In the most common applications… read more here.
Keywords: probability; scrape layer; characteristic function; function ... See more keywords
Dynamics of scrape-off layer filaments in high β plasmas
Sign Up to like & getrecommendations! Published in 2019 at "Plasma Physics and Controlled Fusion"
DOI: 10.1088/1361-6587/ab34f8
Abstract: The role of magnetic perturbations generated by filaments in the scrape-off layer is investigated by performing simulations of 3D seeded filaments with an electromagnetic numerical code which includes sheath boundary conditions. Depending on the plasma… read more here.
Keywords: layer filaments; field; filaments high; dynamics scrape ... See more keywords