Nonlinear magnetohydrodynamic modeling of current-drive-induced sawtooth-like crashes in the W7-X stellarator [PDF]
Phys. Plasmas 30, 032503 (2023), 2022 Sawtooth-like core electron temperature crashes have been observed in W7-X experiments with electron cyclotron current drive. We present nonlinear single-fluid magnetohydrodynamic simulations of this phenomenon using the newly developed stellarator modeling capability of the M3D-$C^1$ code.
Yao Zhou, K. Aleynikova, N.M. Ferraro
arxiv +5 more sources
The Phase Modulating Micro-Mover Based on the MHD/MET System in the Reference Arm of the Scanning Interferometer. [PDF]
Micromachines (Basel), 2022 The possibility of using a magnetohydrodynamic drive (MHD) and amolecular-electronic transfer (MET) sensor as a single device for moving and precise control of the displacement of a movable mirror, which is part of a scanning interferometer, is ...
Kalenkov S +4 more
europepmc +2 more sources
Closure of the single fluid magnetohydrodynamic equations in presence of electron cyclotron current drive [PDF]
EPJ Web of Conferences, 2015 In the presence of electron cyclotron current drive (ECCD), the Ohm’s law of single fluid magnetohydrodynamics (MHD) is modified as E + v × B = η(J – JECCD).
Westerhof E., Pratt J., Ayten B.
doaj +2 more sources
Closure of the single fluid magnetohydrodynamic equations in presence of electron cyclotron current drive [PDF]
, 2014 In the presence of electron cyclotron current drive (ECCD), the Ohm's law of single fluid magnetohydrodynamics (MHD) is modified as ${\bf E} + {\bf v} \times {\bf B} = \eta( {\bf J} - {\bf J}_{\rm EC} )$. This paper presents a new closure relation for the EC driven current density appearing in this modified Ohm's law.
E. Westerhof, J. Pratt
arxiv +3 more sources
Chromospheric Jets and Their Properties [PDF]
Iranian Journal of Astronomy and Astrophysics, 2022 In this study we review solar chromospheric jets and characteristics of them. The chromosphere and transition region are the interface between the solar photosphere and the corona, which plays a key role in the formation and acceleration of the solar ...
Ehsan Tavabi, Sima Zeighami
doaj +1 more source
Plasma Flows in Solar Filaments as Electromagnetically Driven Vortical Flows
Physics, 2021 Electromagnetic expulsion acts on a body suspended in a conducting fluid or plasma, which is subject to the influence of electric and magnetic fields. Physically, the effect is a magnetohydrodynamic analogue of the buoyancy (Archimedean) force, which is ...
Yuri E. Litvinenko
doaj +1 more source
Anomalous Scaling in the Kinematic Magnetohydrodynamic Turbulence [PDF]
EPJ Web of Conferences, 2020 The problem of the anomalous scaling in the kinematic magnetohydrodynamic turbulence is investigated using the field theoretic renormalization group method and the operator product expansion technique.
Jurčišinová Eva +2 more
doaj +1 more source
Atoms, 2023 Mathematical modelling of heating and current drive as well as yields and distributions of fusion products in a magnetically confined plasma subject to neutral beam injection requires, in turn, modelling of distributions of fast ions, which is a complex ...
Pavel Goncharov
doaj +1 more source
Electric Analysis of the Maritime Application High-Frequency Magnetohydrodynamic Thruster
Energies, 2023 A magnetohydrodynamic (MHD) thruster is the next-generation electric jet engine for maritime applications. It eliminates the moving mechanical components that make the noises and reduces physical harm to sea creatures.
Kin Lung Jerry Kan +2 more
doaj +1 more source
Role of Radio Frequency and Microwaves in Magnetic Fusion Plasma Research [PDF]
Journal of the Korean Institute of Electromagnetic Engineering and Science, 2017 The role of electromagnetic (EM) waves in magnetic fusion plasma—ranging from radio frequency (RF) to microwaves—has been extremely important, and understanding of EM wave propagation and related technology in this field has significantly advanced ...
Hyeon K. Park
doaj +1 more source