Dissipation measures in weakly-collisional plasmas
arXiv:2101.00722 · doi:10.1093/mnras/stab1516
Abstract
The physical foundations of the dissipation of energy and the associated heating in weakly collisional plasmas are poorly understood. Here, we compare and contrast several measures that have been used to characterize energy dissipation and kinetic-scale conversion in plasmas by means of a suite of kinetic numerical simulations describing both magnetic reconnection and decaying plasma turbulence. We adopt three different numerical codes that can also include interparticle collisions: the fully kinetic particle-in-cell VPIC, the fully kinetic continuum Gkeyll, and the Eulerian Hybrid Vlasov-Maxwell (HVM) code. We differentiate between (i) four energy-based parameters, whose definition is related to energy transfer in a fluid description of a plasma, and (ii) four distribution function-based parameters, requiring knowledge of the particle velocity distribution function. There is an overall agreement between the dissipation measures obtained in the PIC and continuum reconnection simulations, with slight differences due to the presence/absence of secondary islands in the two simulations. There are also many qualitative similarities between the signatures in the reconnection simulations and the self-consistent current sheets that form in turbulence, although the latter exhibits significant variations compared to the reconnection results. All the parameters confirm that dissipation occurs close to regions of intense magnetic stresses, thus exhibiting local correlation. The distribution function-based measures show a broader width compared to energy-based proxies, suggesting that energy transfer is co-localized at coherent structures, but can affect the particle distribution function in wider regions. The effect of interparticle collisions on these parameters is finally discussed.
arXiv commentAccepted for publication on MNRAS
References in corpus (60)
- Comparing the statistics of interstellar turbulence in simulations and observations: Solenoidal versus compressive turbulence forcing
- Astrophysical gyrokinetics: kinetic and fluid turbulent cascades in magnetized weakly collisional plasmas
- The multi-scale nature of the solar wind
- Perpendicular Ion Heating by Low-Frequency Alfven-Wave Turbulence in the Solar Wind
- Electron-Scale Dynamics of the Diffusion Region during Symmetric Magnetic Reconnection in Space
- Observation of inertial energy cascade in interplanetary space plasma
- New Measure of the Dissipation Region in Collisionless Magnetic Reconnection
- Evidence for Electron Landau Damping in Space Plasma Turbulence
- Energy transfer, pressure tensor and heating of kinetic plasma
- A catastrophe model for fast magnetic reconnection onset
- The serendipity family of finite elements
- Discontinuous Galerkin algorithms for fully kinetic plasmas
- Quantifying Gyrotropy in Magnetic Reconnection
- Nonlinear phase mixing and phase-space cascade of entropy in gyrokinetic plasma turbulence
- Kinetic dissipation and anisotropic heating in a turbulent collisionless plasma
- Phase mixing vs. nonlinear advection in drift-kinetic plasma turbulence
- On the von Karman-Howarth equations for Hall MHD flows
- Turbulence-driven ion beams in the magnetospheric Kelvin-Helmholtz instability
- Magnetosperic Multiscale (MMS) observation of plasma velocity-space cascade: Hermite representation and theory
- Measuring Collisionless Damping in Heliospheric Plasmas using Field-Particle Correlations
- Pressure anisotropy and small spatial scales induced by velocity shear
- A Dynamical Model of Plasma Turbulence in the Solar Wind
- Diagnosing collisionless energy transfer using field-particle correlations: gyrokinetic turbulence
- Comparison of multi-fluid moment models with Particle-in-Cell simulations of collisionless magnetic reconnection
- Dual phase-space cascades in 3D hybrid-Vlasov-Maxwell turbulence
- Propinquity of current and vortex structures: effects on collisionless plasma heating
- MHD Turbulence
- In-situ observation of Hall Magnetohydrodynamic Cascade in Space Plasma
- Scale dependence of energy transfer in turbulent plasma
- The Structure of Plasma Heating in Gyrokinetic Alfvénic Turbulence
- Magnetic turbulence spectra and intermittency in the heliosheath and in the local interstellar medium
- Electromagnetic full- gyrokinetics in the tokamak edge with discontinuous Galerkin methods
- On the origin of the crescent-shaped distributions observed by MMS at the magnetopause
- On the statistical properties of turbulent energy transfer rate in the inner Heliosphere
- Ion and electron heating during magnetic reconnection in weakly collisional plasmas
- Analysis of cancellation in two-dimensional magnetohydrodynamic turbulence
- Turbulent Dissipation Challenge: A community Driven Effort
- Diagnosing collisionless energy transfer using field-particle correlations: Alfven-Ion Cyclotron Turbulence
- Velocity-Space Cascade in Magnetized Plasmas: Numerical Simulations
- On exact laws in incompressible Hall magnetohydrodynamic turbulence
- Conservative Discontinuous Galerkin Schemes for Nonlinear Fokker-Planck Collision Operators
- Local energy transfer rate and kinetic processes: the fate of turbulent energy in two-dimensional Hybrid Vlasov-Maxwell numerical simulations
- The Inherently Three-Dimensional Nature of Magnetized Plasma Turbulence
- Energy Dissipation and Landau Damping in Two- and Three-Dimensional Plasma Turbulence
- Colliding Alfvénic wave packets in MHD, Hall and kinetic simulations
- Fluctuation-dissipation relations for a plasma-kinetic Langevin equation
- On the Role of Separatrix Instabilities in Heating the Reconnection Outflow Region
- Energy conversion in turbulent weakly-collisional plasmas: Eulerian Hybrid Vlasov-Maxwell simulations
- Turbulent electromagnetic fields at sub-proton scales: two-fluid and full-kinetic plasma simulations
- Suppression of phase mixing in drift-kinetic plasma turbulence
- Decomposition of Plasma Kinetic Entropy into Position and Velocity Space and the Use of Kinetic Entropy in Particle-in-Cell Simulations
- Fluid simulations of plasma turbulence at ion scales: comparison with Vlasov-Maxwell simulations
- Proton-proton collisions in the turbulent solar wind: Hybrid Boltzmann-Maxwell simulations
- Energy transfer and dual cascade in kinetic magnetized plasma turbulence
- On the deviation from Maxwellian of the ion velocity distribution functions in the turbulent magnetosheath
- Full- gyrokinetic simulation of turbulence in a helical open-field-line plasma
- Solar wind collisional heating
- Kinetic Entropy-Based Measures of Distribution Function Non-Maxwellianity: Theory and Simulations
- Fourier-Hermite decomposition of the collisional Vlasov-Maxwell system: implications for the velocity space cascade
- Local and global properties of energy transfer in models of plasma turbulence
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- Pressure-Strain Interaction as the Energy Dissipation Estimate in Collisionless Plasma
- Energy Dissipation in Turbulent Reconnection
- Relativistic Particle Transport and Acceleration in Structured Plasma Turbulence
- Three-dimensional modelling of the shock-turbulence interaction
- Pressure-Strain Interaction: I. On Compression, Deformation, and Implications For Pi-D
- Spectral properties and energy transfer at kinetic scales in collisionless plasma turbulence
- Pressure-Strain Interaction: III. Particle-in-Cell Simulations of Magnetic Reconnection
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- A Parallel Low-Rank Solver for the Six-Dimensional Vlasov-Maxwell Equations
- Particle-in-cell simulations of Alfvén wave parametric decay in a low-beta plasma
- Formation and Evolution of Coherent Structures in 3D Strongly Turbulent Magnetized Plasmas
- Energy transport during 3D small-scale reconnection driven by anisotropic plasma turbulence
- An Energy Conserving Vlasov Solver That Tolerates Coarse Velocity Space Resolutions: Simulation of MMS Reconnection Events
- Higher-order nonequilibrium term: Effective power density quantifying evolution towards or away from local thermodynamic equilibrium
- Turbulent Energy Conversion Associated with Kinetic Microinstabilities in Earth's Magnetosheath
- Electron-to-ion bulk speed ratio as a parameter reflecting the occurrence of strong electron-dominated current sheets in the solar wind
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- Current sheets, plasmoids and flux ropes in the heliosphere. Part II: Theoretical aspects
- Ion-scale transition of plasma turbulence: Pressure-strain effect