# Energy transfer, pressure tensor and heating of kinetic plasma

@article{Yang2017EnergyTP, title={Energy transfer, pressure tensor and heating of kinetic plasma}, author={Y. Yang and William H. Matthaeus and Tulasi N. Parashar and Colby C. Haggerty and Vadim Roytershteyn and William S. Daughton and Minping Wan and Y. Shi and S. Chen}, journal={arXiv: Plasma Physics}, year={2017} }

Kinetic plasma turbulence cascade spans multiple scales ranging from macroscopic fluid flow to sub-electron scales. Mechanisms that dissipate large scale energy, terminate the inertial range cascade and convert kinetic energy into heat are hotly debated. Here we revisit these puzzles using fully kinetic simulation. By performing scale-dependent spatial filtering on the Vlasov equation, we extract information at prescribed scales and introduce several energy transfer functions. This approach…

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## References

SHOWING 1-10 OF 86 REFERENCES

### Cascade of kinetic energy in three-dimensional compressible turbulence.

- Physics, EngineeringPhysical review letters
- 2013

The conservative cascade of kinetic energy is established using both Fourier analysis and a new exact physical-space flux relation in a simulated compressible turbulence, indicating a statistical self-similarity of kineticEnergy cascades.

### Intermittent Dissipation and Heating in 3D Kinetic Plasma Turbulence.

- PhysicsPhysical review letters
- 2015

High resolution, fully kinetic, three dimensional simulation of collisionless plasma turbulence shows the development of turbulence characterized by sheetlike current density structures spanning a range of scales, and presents evidence that these current sheet structures are sites for heating and dissipation, and that stronger currents signify higher dissipation rates.

### Compressible turbulence: the cascade and its locality.

- Physics, Environmental SciencePhysical review letters
- 2011

It is proved that interscale transfer of kinetic energy in compressible turbulence is dominated by local interactions, and establishes the existence of an ensuing inertial range over which mean subgrid scale kinetic energy flux becomes constant, independent of scale.

### Intermittent dissipation at kinetic scales in collisionless plasma turbulence.

- PhysicsPhysical review letters
- 2012

High resolution kinetic simulations of collisionless plasma driven by shear show the development of turbulence characterized by dynamic coherent sheetlike current density structures spanning a range of scales down to electron scales, indicating that kinetic scale plasma, like magnetohydrodynamics, becomes intermittent due to current sheet formation.

### Energy cascade and its locality in compressible magnetohydrodynamic turbulence.

- PhysicsPhysical review. E
- 2016

We investigate energy transfer across scales in three-dimensional compressible magnetohydrodynamic (MHD) turbulence, a model often used to study space and astrophysical plasmas. Analysis shows that…

### A Model of Turbulence in Magnetized Plasmas: Implications for the Dissipation Range in the Solar Wind

- Physics
- 2007

This paper studies the turbulent cascade of magnetic energy in weakly col- lisional magnetized plasmas. A cascade model is presented, based on the assumptions of local nonlinear energy transfer in…

### CONSERVATIVE CASCADE OF KINETIC ENERGY IN COMPRESSIBLE TURBULENCE

- Physics
- 2011

The physical nature of compressible turbulence is of fundamental importance in a variety of astrophysical settings. We investigate the question: “At what scales does the mechanism of…

### Gyrokinetic turbulence: a nonlinear route to dissipation through phase space

- Physics
- 2008

This paper describes a conceptual framework for understanding kinetic plasma turbulence as a generalized form of energy cascade in phase space. It is emphasized that conversion of turbulent energy…

### CURRENT SHEETS AND COLLISIONLESS DAMPING IN KINETIC PLASMA TURBULENCE

- Physics
- 2013

We present the first study of the formation and dissipation of current sheets at electron scales in a wave-driven, weakly collisional, three-dimensional kinetic turbulence simulation. We investigate…

### ASTROPHYSICAL GYROKINETICS: KINETIC AND FLUID TURBULENT CASCADES IN MAGNETIZED WEAKLY COLLISIONAL PLASMAS

- Physics
- 2007

This paper presents a theoretical framework for understanding plasma turbulence in astrophysical plasmas. It is motivated by observations of electromagnetic and density fluctuations in the solar…