Concept
Induction equation
Publications associées (33)
Shedding light on the MRI-driven dynamo in a stratified shearing box
We study the magneto-rotational instability (MRI) dynamo in a geometrically thin disc (H/R < 1) using stratified zero net (vertical) flux shearing box simulations. We find that mean fields and electromotive forces (EMFs) oscillate with a primary frequency ...
2024Runaway dynamics in reactor-scale spherical tokamak disruptions
Understanding generation and mitigation of runaway electrons in disruptions is important for the safe operation of future tokamaks. In this paper we investigate the runaway dynamics in reactor-scale spherical tokamaks, focusing on a compact nominal design ...
CAMBRIDGE UNIV PRESS2022Relic Gravitational Waves from the Chiral Magnetic Effect
Relic gravitational waves (GWs) can be produced by primordial magnetic fields. However, not much is known about the resulting GW amplitudes and their dependence on the details of the generation mechanism. Here we treat magnetic field generation through the ...
IOP PUBLISHING LTD2021Pedestal structure, stability and scalings in JET-ILW: the EUROfusion JET-ILW pedestal database
The EUROfusion JET-ILW pedestal database is described, with emphasis on three main issues. First, the technical aspects are introduced, including a description of the data selection, the datasets, the diagnostics used, the experimental and theoretical meth ...
2020Chiral fermion asymmetry in high-energy plasma simulations
The chiral magnetic effect (CME) is a quantum relativistic effect that describes the appearance of an additional electric current along a magnetic field. It is caused by an asymmetry between the number densities of left- and right-handed fermions, which ca ...
2020Energetics of turbulence generated by chiral MHD dynamos
An asymmetry in the number density of left- and right-handed fermions is known to give rise to a new term in the induction equation that can result in a dynamo instability. At high temperatures, when a chiral asymmetry can survive for long enough, this chi ...
TAYLOR & FRANCIS LTD2019Singular global components and frequency shift of the geodesic acoustic continuum modes in shaped tokamaks
Within the ideal magnetohydrodynamic (MHD) model, the geodesic acoustic modes (GAMs) in tokamaks derived by Winsor et al (1968 Phys. Fluids 11 2448) belong to the continuous spectrum, characterised by unbounded non-square integrable eigenfunctions (delta f ...
2019