Intermittency, nonlinear dynamics and dissipation in the solar wind and astrophysical plasmas
An overview is given of important properties of spatial and temporal intermittency, including evidence of its appearance in fluids, magnetofluids and plasmas, and its implications for understanding of heliospheric plasmas. Spatial intermittency is generally associated with formation of sharp gradien...
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paper:paper_1364503X_v373_n2041_p_Matthaeus2023-06-08T16:11:41Z Intermittency, nonlinear dynamics and dissipation in the solar wind and astrophysical plasmas Dmitruk, Pablo Ariel Intermittency Plasma physics Solar corona Solar wind Turbulence theory Charged particles Solar wind Dissipation functions Intermittency Long-time correlations Plasma physics Solar corona Steady-state condition Temporal intermittency Turbulence theory Energy dissipation An overview is given of important properties of spatial and temporal intermittency, including evidence of its appearance in fluids, magnetofluids and plasmas, and its implications for understanding of heliospheric plasmas. Spatial intermittency is generally associated with formation of sharp gradients and coherent structures. The basic physics of structure generation is ideal, but when dissipation is present it is usually concentrated in regions of strong gradients. This essential feature of spatial intermittency in fluids has been shown recently to carry over to the realm of kinetic plasma, where the dissipation function is not known from first principles. Spatial structures produced in intermittent plasma influence dissipation, heating, and transport and acceleration of charged particles. Temporal intermittency can give rise to very long time correlations or a delayed approach to steady-state conditions, and has been associated with inverse cascade or quasi-inverse cascade systems, with possible implications for heliospheric prediction. © 2015 The Author(s) Published by the Royal Society. All rights reserved. Fil:Dmitruk, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2015 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1364503X_v373_n2041_p_Matthaeus http://hdl.handle.net/20.500.12110/paper_1364503X_v373_n2041_p_Matthaeus |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Intermittency Plasma physics Solar corona Solar wind Turbulence theory Charged particles Solar wind Dissipation functions Intermittency Long-time correlations Plasma physics Solar corona Steady-state condition Temporal intermittency Turbulence theory Energy dissipation |
| spellingShingle |
Intermittency Plasma physics Solar corona Solar wind Turbulence theory Charged particles Solar wind Dissipation functions Intermittency Long-time correlations Plasma physics Solar corona Steady-state condition Temporal intermittency Turbulence theory Energy dissipation Dmitruk, Pablo Ariel Intermittency, nonlinear dynamics and dissipation in the solar wind and astrophysical plasmas |
| topic_facet |
Intermittency Plasma physics Solar corona Solar wind Turbulence theory Charged particles Solar wind Dissipation functions Intermittency Long-time correlations Plasma physics Solar corona Steady-state condition Temporal intermittency Turbulence theory Energy dissipation |
| description |
An overview is given of important properties of spatial and temporal intermittency, including evidence of its appearance in fluids, magnetofluids and plasmas, and its implications for understanding of heliospheric plasmas. Spatial intermittency is generally associated with formation of sharp gradients and coherent structures. The basic physics of structure generation is ideal, but when dissipation is present it is usually concentrated in regions of strong gradients. This essential feature of spatial intermittency in fluids has been shown recently to carry over to the realm of kinetic plasma, where the dissipation function is not known from first principles. Spatial structures produced in intermittent plasma influence dissipation, heating, and transport and acceleration of charged particles. Temporal intermittency can give rise to very long time correlations or a delayed approach to steady-state conditions, and has been associated with inverse cascade or quasi-inverse cascade systems, with possible implications for heliospheric prediction. © 2015 The Author(s) Published by the Royal Society. All rights reserved. |
| author |
Dmitruk, Pablo Ariel |
| author_facet |
Dmitruk, Pablo Ariel |
| author_sort |
Dmitruk, Pablo Ariel |
| title |
Intermittency, nonlinear dynamics and dissipation in the solar wind and astrophysical plasmas |
| title_short |
Intermittency, nonlinear dynamics and dissipation in the solar wind and astrophysical plasmas |
| title_full |
Intermittency, nonlinear dynamics and dissipation in the solar wind and astrophysical plasmas |
| title_fullStr |
Intermittency, nonlinear dynamics and dissipation in the solar wind and astrophysical plasmas |
| title_full_unstemmed |
Intermittency, nonlinear dynamics and dissipation in the solar wind and astrophysical plasmas |
| title_sort |
intermittency, nonlinear dynamics and dissipation in the solar wind and astrophysical plasmas |
| publishDate |
2015 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1364503X_v373_n2041_p_Matthaeus http://hdl.handle.net/20.500.12110/paper_1364503X_v373_n2041_p_Matthaeus |
| work_keys_str_mv |
AT dmitrukpabloariel intermittencynonlineardynamicsanddissipationinthesolarwindandastrophysicalplasmas |
| _version_ |
1768542563592044544 |