Results 31 to 40 of about 410 (182)
Free Energy Cascade in Gyrokinetic Turbulence [PDF]
Physical Review Letters, 2011 In gyrokinetic theory, the quadratic nonlinearity is known to play an important role in the dynamics by redistributing (in a conservative fashion) the free energy between the various active scales. In the present study, the free energy transfer is analyzed for the case of ion temperature gradient driven turbulence.
Banon Navarro, Alejandro +6 more
openaire +6 more sources
Journal of Plasma Physics, 2019 Thousands of gyrokinetic papers have been published since the introduction of the gyrokinetic change of variables. The intent here is not to review the field, but rather the goal is to present a tutorial providing insight into why gyrokinetics is an appropriate description of turbulent transport.
openaire +1 more source
, 2023 Python library to run and analyse gyrokinetics simulationsIf you use this software, please cite it as ...
Dudding, H.G. +8 more
core +1 more source
Collisional gyrokinetic full‐f particle‐in‐cell simulations on open field lines with PICLS
Contributions to Plasma Physics, Volume 60, Issue 5-6, June-July 2020., 2020 Abstract Applying gyrokinetic simulations in theoretical turbulence and transport studies for the plasma edge and scrape‐off layer (SOL) presents significant challenges. To particularly account for steep density and temperature gradients in the SOL, the “full‐f” code PICLS was developed.
Mathias Boesl +5 more
wiley +1 more source
Self-generated vortex flows in a tokamak magnetic island with a background flow
Nuclear Fusion, 2023 We present a gyrokinetic theory of self-generated E × B vortex flows in a magnetic island in a collisionless tokamak plasma with a background vortex flow.
G.J. Choi
doaj +1 more source
Electromagnetic gyrokinetic instabilities in STEP
Nuclear Fusion, 2023 We present herein the results of a linear gyrokinetic analysis of electromagnetic microinstabilites in the conceptual high $-\beta,$ reactor-scale, tight-aspect-ratio tokamak Spherical Tokamak for Energy Production, https://step.ukaea.uk .
D. Kennedy +6 more
doaj +1 more source
Linear signatures in nonlinear gyrokinetics: interpreting turbulence with pseudospectra
New Journal of Physics, 2016 A notable feature of plasma turbulence is its propensity to retain features of the underlying linear eigenmodes in a strongly turbulent state—a property that can be exploited to predict various aspects of the turbulence using only linear information.
D R Hatch +5 more
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Nuclear Fusion, 2023 Flux-tube (local) gyrokinetic codes are widely used to simulate drift-wave turbulence in magnetic confinement devices. While a large number of studies show that flux-tube codes provide an excellent approximation for turbulent transport in medium-large ...
A. Di Siena +10 more
doaj +1 more source
Astrophysical gyrokinetics: Basic equations and linear theory
, 2005 Magnetohydrodynamic (MHD) turbulence is encountered in a wide variety of astrophysical plasmas, including accretion disks, the solar wind, and the interstellar and intracluster medium.
Cowley, SC +5 more
core +1 more source
Critical balance in magnetohydrodynamic, rotating and stratified turbulence : towards a universal scaling conjecture [PDF]
, 2009 It is proposed that critical balance - a scale-by-scale balance between the linear propagation and nonlinear interaction time scales - can be used as a universal scaling conjecture for determining the spectra of strong turbulence in anisotropic wave ...
Nazarenko, Sergey +5 more
core +1 more source