Results 91 to 100 of about 16,475 (273)

Plasmakristall‐4 Experiment: 10 Years of Operation in Orbit

Contributions to Plasma Physics, EarlyView.
ABSTRACT Plasmakristall‐4 (PK‐4) is a microgravity complex plasma laboratory operated for 10 years on board the International Space Station. Its main purpose is the particle‐resolved investigation of generic condensed matter phenomena using strongly coupled suspensions of microparticles immersed in low‐pressure gas‐discharge plasmas.
M. Pustylnik, H. M. Thomas, M. Kretschmer, M. Thoma   +3 more
wiley   +1 more source

Plasma Turbulence Studies Using Correlation Doppler Reflectometry on the ASDEX Upgrade Tokamak [PDF]

, 2005
One of the major goals of the tokamak fusion program is the understanding and control of plasma turbulence. Turbulence causes additional radial transport of heat and particles to the tokamak vessel walls, thereby degrading the overall confinement of the ...
Schirmer, J., Schirmer, Jasmine
core  

Thermal helium beam measurements of plasma edge turbulence in positive and negative triangularity plasmas on TCV

Nuclear Fusion
Edge plasma behavior plays a central role in determining the overall confinement and operational limits of tokamak plasmas. In particular, turbulence at the plasma boundary strongly influences particle and heat transport and remains a key target for ...
M. Ugoletti, M. Agostini, M. La Matina, M. Bonisolli, S. Coda, O. Fevrier, O. Krutkin, B. Labit, S. Rienäcker, O. Sauter, Y. Wang, C. Theiler, the TCV team, the WPTE team   +13 more
doaj   +1 more source

Three-dimensional modelling of edge multi-component plasma taking into account realistic wall geometry

Nuclear Materials and Energy, 2019
A 3D multispecies fluid model has been implemented in the SOLEDGE-TOKAM suite of codes to address Scrape-off layer turbulent impurity transport. Zhdanov closure is used to address multi-component plasma modeling without any mass ordering or trace ...
H. Bufferand, P. Tamain, S. Baschetti, J. Bucalossi, G. Ciraolo, N. Fedorczak, Ph. Ghendrih, F. Nespoli, F. Schwander, E. Serre, Y. Marandet   +10 more
doaj   +1 more source

Coupling Fluid Neutrals to Gyrokinetic Plasma Dynamics for Edge and SOL Turbulence Simulations

Contributions to Plasma Physics, EarlyView.
ABSTRACT Accurate modeling of turbulent transport in magnetic confinement fusion devices requires extending first‐principles gyrokinetic simulations from the core to the edge and scrape‐off layer (SOL), where additional physics—particularly plasma–neutrals interactions—must be included.
Sabine Ogier‐Collin, Philipp Ulbl, Wladimir Zholobenko, Frank Jenko   +3 more
wiley   +1 more source

Real-time tracking of the turbulence-minimum state for optimizing plasma confinement in LHD

Nuclear Fusion
Turbulence-driven anomalous transport is one of the primary factors that degrade plasma confinement performance and remains a common challenge in both tokamaks and stellarators/heliotrons.
T. Kinoshita, Y. Morishita, N. Kenmochi, T. Yokoyama, K. Tanaka, H. Funaba   +5 more
doaj   +1 more source

Edge Fluid Turbulence Simulations of Stellarators With GRILLIX

Contributions to Plasma Physics, EarlyView.
ABSTRACT The edge fluid turbulence code GRILLIX has recently been extended from axisymmetric tokamak geometries to support 3D stellarator configurations. Following successful proof‐of‐principle simulations published in Stegmeir et al., we present here a comprehensive simulation of the Wendelstein 7‐AS stellarator.
Andreas Stegmeir, Christoph Pitzal, Barnabas Csillag, Miguel Madeira, Marion Finkbeiner   +4 more
wiley   +1 more source

Higher-Order Statistics in Compressive Solar Wind Plasma Turbulence: High-Resolution Density Observations From the Magnetospheric MultiScale Mission

Frontiers in Physics, 2020
Turbulent density fluctuations are investigated in the solar wind at sub-ion scales using calibrated spacecraft potential. The measurement technique using the spacecraft potential allows for a much higher time resolution and sensitivity when compared to ...
Owen Wyn Roberts, Jessica Thwaites, Jessica Thwaites, Luca Sorriso-Valvo, Rumi Nakamura, Zoltán Vörös, Zoltán Vörös   +6 more
doaj   +1 more source

Heat Load Mitigation Studies in the W7‐X Stellarator Experiment

Contributions to Plasma Physics, EarlyView.
ABSTRACT During the experiments at the stellarator Wendelstein 7‐X (W7‐X) with fully water‐cooled plasma‐facing components (PFC), including carbon‐fiber composite (CFC) divertor targets with a thermal load capability of 10 MW/m2, high performance was achieved.
Dirk Naujoks, Amit Kharwandikar, Jasper Dettmar, Michael Endler, Joris Fellinger, Yu Gao, Joachim Geiger, Marcin Jakubowski, Thomas Sieber, Sebastian Thiede, Christian Voß, W7‐X Team   +11 more
wiley   +1 more source

Quantifying finite range plasma turbulence [PDF]

Turbulence is a highly non-linear process ubiquitous in Nature. The nonlinearity is responsible for the coupling of many degrees of freedom leading to an unpredictable dynamical evolution of a turbulent system.
Leonardis, Ersilia
core