Suppression of phase mixing in drift-kinetic plasma turbulence

J. T. Parker; E. G. Highcock; A. A. Schekochihin; P. J. Dellar

doi:10.1063/1.4958954

Suppression of phase mixing in drift-kinetic plasma turbulence

J. T. Parker, E. G. Highcock, A. A. Schekochihin, P. J. Dellar

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

Transfer of free energy from large to small velocity-space scales by phase mixing leads to Landau damping in a linear plasma. In a turbulent drift-kinetic plasma, this transfer is statistically nearly canceled by an inverse transfer from small to large velocity-space scales due to "anti-phase-mixing" modes excited by a stochastic form of plasma echo. Fluid moments (density, velocity, and temperature) are thus approximately energetically isolated from the higher moments of the distribution function, so phase mixing is ineffective as a dissipation mechanism when the plasma collisionality is small.

Original language	English (US)
Pages (from-to)	070703
Journal	Physics of Plasmas
Volume	23
Issue number	7
DOIs	https://doi.org/10.1063/1.4958954
State	Published - Jul 2016
Externally published	Yes

Bibliographical note

KAUST Repository Item: Exported on 2021-04-02
Acknowledged KAUST grant number(s): KUK-C1-013-04
Acknowledgements: The authors are grateful for fruitful conversations with I.Abel, M. Barnes, G. Colyer, S. Cowley, M. Fox, G. Hammett, F. Parra, C. Roach, and F. van Wyk, and especially A.Kanekar and W. Dorland. This work was supported by the UK Engineering and Physical Sciences Research Council
through a Doctoral Training Grant award to J.T.P. and an Advanced Research Fellowship [Grant No. EP/E054625/1] to P.J.D., with additional support from Award No KUK-C1-013-04 made by King Abdullah University of Science and Technology (KAUST). Some of the results of this research were obtained using the PRACE-3IP project (FP7 RI312763), resource FIONN based in Ireland at the DJEI/DES/SFI/HEA Irish Centre for High-End Computing (ICHEC). This work also made use of the IRIDIS High Performance Computing Facility provided by the Science and Engineering South (SES) Centre for Innovation, the UK HECToR HPC facility [Grant No. EP/H002081/1], the resources of the STFC Hartree Centre, the HELIOS supercomputer (IFERC-CSC), Admori, Japan, and the University of Oxford Advanced Research Computing (ARC) facility.31 E.G.H’s work has been carried out within the framework of the EUROfusion Consortium and was supported by a EUROfusion fusion researcher fellowship [WP14-FRF-CCFE/Highcock]. The views and opinions expressed herein do not necessarily reflect those of the European Commission. All authors are grateful to the Wolfgang Pauli Institute, Vienna, for its hospitality on several occasions.
This publication acknowledges KAUST support, but has no KAUST affiliated authors.

ASJC Scopus subject areas

Condensed Matter Physics

Access to Document

10.1063/1.4958954

Cite this

@article{820605d4a4504ed8b01800f1b32bc651,

title = "Suppression of phase mixing in drift-kinetic plasma turbulence",

abstract = "Transfer of free energy from large to small velocity-space scales by phase mixing leads to Landau damping in a linear plasma. In a turbulent drift-kinetic plasma, this transfer is statistically nearly canceled by an inverse transfer from small to large velocity-space scales due to {"}anti-phase-mixing{"} modes excited by a stochastic form of plasma echo. Fluid moments (density, velocity, and temperature) are thus approximately energetically isolated from the higher moments of the distribution function, so phase mixing is ineffective as a dissipation mechanism when the plasma collisionality is small.",

author = "Parker, {J. T.} and Highcock, {E. G.} and Schekochihin, {A. A.} and Dellar, {P. J.}",

note = "KAUST Repository Item: Exported on 2021-04-02 Acknowledged KAUST grant number(s): KUK-C1-013-04 Acknowledgements: The authors are grateful for fruitful conversations with I.Abel, M. Barnes, G. Colyer, S. Cowley, M. Fox, G. Hammett, F. Parra, C. Roach, and F. van Wyk, and especially A.Kanekar and W. Dorland. This work was supported by the UK Engineering and Physical Sciences Research Council through a Doctoral Training Grant award to J.T.P. and an Advanced Research Fellowship [Grant No. EP/E054625/1] to P.J.D., with additional support from Award No KUK-C1-013-04 made by King Abdullah University of Science and Technology (KAUST). Some of the results of this research were obtained using the PRACE-3IP project (FP7 RI312763), resource FIONN based in Ireland at the DJEI/DES/SFI/HEA Irish Centre for High-End Computing (ICHEC). This work also made use of the IRIDIS High Performance Computing Facility provided by the Science and Engineering South (SES) Centre for Innovation, the UK HECToR HPC facility [Grant No. EP/H002081/1], the resources of the STFC Hartree Centre, the HELIOS supercomputer (IFERC-CSC), Admori, Japan, and the University of Oxford Advanced Research Computing (ARC) facility.31 E.G.H{\textquoteright}s work has been carried out within the framework of the EUROfusion Consortium and was supported by a EUROfusion fusion researcher fellowship [WP14-FRF-CCFE/Highcock]. The views and opinions expressed herein do not necessarily reflect those of the European Commission. All authors are grateful to the Wolfgang Pauli Institute, Vienna, for its hospitality on several occasions. This publication acknowledges KAUST support, but has no KAUST affiliated authors.",

year = "2016",

month = jul,

doi = "10.1063/1.4958954",

language = "English (US)",

volume = "23",

pages = "070703",

journal = "Physics of Plasmas",

issn = "1070-664X",

publisher = "American Institute of Physics",

number = "7",

}

TY - JOUR

T1 - Suppression of phase mixing in drift-kinetic plasma turbulence

AU - Parker, J. T.

AU - Highcock, E. G.

AU - Schekochihin, A. A.

AU - Dellar, P. J.

N1 - KAUST Repository Item: Exported on 2021-04-02 Acknowledged KAUST grant number(s): KUK-C1-013-04 Acknowledgements: The authors are grateful for fruitful conversations with I.Abel, M. Barnes, G. Colyer, S. Cowley, M. Fox, G. Hammett, F. Parra, C. Roach, and F. van Wyk, and especially A.Kanekar and W. Dorland. This work was supported by the UK Engineering and Physical Sciences Research Council through a Doctoral Training Grant award to J.T.P. and an Advanced Research Fellowship [Grant No. EP/E054625/1] to P.J.D., with additional support from Award No KUK-C1-013-04 made by King Abdullah University of Science and Technology (KAUST). Some of the results of this research were obtained using the PRACE-3IP project (FP7 RI312763), resource FIONN based in Ireland at the DJEI/DES/SFI/HEA Irish Centre for High-End Computing (ICHEC). This work also made use of the IRIDIS High Performance Computing Facility provided by the Science and Engineering South (SES) Centre for Innovation, the UK HECToR HPC facility [Grant No. EP/H002081/1], the resources of the STFC Hartree Centre, the HELIOS supercomputer (IFERC-CSC), Admori, Japan, and the University of Oxford Advanced Research Computing (ARC) facility.31 E.G.H’s work has been carried out within the framework of the EUROfusion Consortium and was supported by a EUROfusion fusion researcher fellowship [WP14-FRF-CCFE/Highcock]. The views and opinions expressed herein do not necessarily reflect those of the European Commission. All authors are grateful to the Wolfgang Pauli Institute, Vienna, for its hospitality on several occasions. This publication acknowledges KAUST support, but has no KAUST affiliated authors.

PY - 2016/7

Y1 - 2016/7

N2 - Transfer of free energy from large to small velocity-space scales by phase mixing leads to Landau damping in a linear plasma. In a turbulent drift-kinetic plasma, this transfer is statistically nearly canceled by an inverse transfer from small to large velocity-space scales due to "anti-phase-mixing" modes excited by a stochastic form of plasma echo. Fluid moments (density, velocity, and temperature) are thus approximately energetically isolated from the higher moments of the distribution function, so phase mixing is ineffective as a dissipation mechanism when the plasma collisionality is small.

AB - Transfer of free energy from large to small velocity-space scales by phase mixing leads to Landau damping in a linear plasma. In a turbulent drift-kinetic plasma, this transfer is statistically nearly canceled by an inverse transfer from small to large velocity-space scales due to "anti-phase-mixing" modes excited by a stochastic form of plasma echo. Fluid moments (density, velocity, and temperature) are thus approximately energetically isolated from the higher moments of the distribution function, so phase mixing is ineffective as a dissipation mechanism when the plasma collisionality is small.

UR - http://hdl.handle.net/10754/668481

UR - http://aip.scitation.org/doi/10.1063/1.4958954

UR - http://www.scopus.com/inward/record.url?scp=84979026137&partnerID=8YFLogxK

U2 - 10.1063/1.4958954

DO - 10.1063/1.4958954

M3 - Article

SN - 1070-664X

VL - 23

SP - 070703

JO - Physics of Plasmas

JF - Physics of Plasmas

IS - 7

ER -

Suppression of phase mixing in drift-kinetic plasma turbulence

Abstract

Bibliographical note

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this