Magnetic reconnection as an element of turbulence
In this work, recent advances on the study of reconnection in turbulence are reviewed. Using direct numerical simulations of decaying incompressible two-dimensional magnetohydrodynamics (MHD), it was found that in fully developed turbulence complex processes of reconnection locally occur (Servidio e...
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2011
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10235809_v18_n5_p675_Servidio http://hdl.handle.net/20.500.12110/paper_10235809_v18_n5_p675_Servidio |
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paper:paper_10235809_v18_n5_p675_Servidio2023-06-08T16:00:09Z Magnetic reconnection as an element of turbulence algorithm boundary condition magnetohydrodynamics numerical model solar wind spatial resolution turbulence In this work, recent advances on the study of reconnection in turbulence are reviewed. Using direct numerical simulations of decaying incompressible two-dimensional magnetohydrodynamics (MHD), it was found that in fully developed turbulence complex processes of reconnection locally occur (Servidio et al., 2009, 2010a). In this complex scenario, reconnection is spontaneous but locally driven by the fields, with the boundary conditions provided by the turbulence. Matching classical turbulence analysis with a generalized Sweet-Parker theory, the statistical features of these multiple-reconnection events have been identified. A discussion on the accuracy of our algorithms is provided, highlighting the necessity of adequate spatial resolution. Applications to the study of solar wind discontinuities are reviewed, comparing simulations to spacecraft observations. New results are shown, studying the time evolution of these local reconnection events. A preliminary study on the comparison between MHD and Hall MHD is reported. Our new approach to the study of reconnection as an element of turbulence has broad applications to space plasmas, shedding a new light on the study of magnetic reconnection in nature. © 2011 Author(s). 2011 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10235809_v18_n5_p675_Servidio http://hdl.handle.net/20.500.12110/paper_10235809_v18_n5_p675_Servidio |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
algorithm boundary condition magnetohydrodynamics numerical model solar wind spatial resolution turbulence |
| spellingShingle |
algorithm boundary condition magnetohydrodynamics numerical model solar wind spatial resolution turbulence Magnetic reconnection as an element of turbulence |
| topic_facet |
algorithm boundary condition magnetohydrodynamics numerical model solar wind spatial resolution turbulence |
| description |
In this work, recent advances on the study of reconnection in turbulence are reviewed. Using direct numerical simulations of decaying incompressible two-dimensional magnetohydrodynamics (MHD), it was found that in fully developed turbulence complex processes of reconnection locally occur (Servidio et al., 2009, 2010a). In this complex scenario, reconnection is spontaneous but locally driven by the fields, with the boundary conditions provided by the turbulence. Matching classical turbulence analysis with a generalized Sweet-Parker theory, the statistical features of these multiple-reconnection events have been identified. A discussion on the accuracy of our algorithms is provided, highlighting the necessity of adequate spatial resolution. Applications to the study of solar wind discontinuities are reviewed, comparing simulations to spacecraft observations. New results are shown, studying the time evolution of these local reconnection events. A preliminary study on the comparison between MHD and Hall MHD is reported. Our new approach to the study of reconnection as an element of turbulence has broad applications to space plasmas, shedding a new light on the study of magnetic reconnection in nature. © 2011 Author(s). |
| title |
Magnetic reconnection as an element of turbulence |
| title_short |
Magnetic reconnection as an element of turbulence |
| title_full |
Magnetic reconnection as an element of turbulence |
| title_fullStr |
Magnetic reconnection as an element of turbulence |
| title_full_unstemmed |
Magnetic reconnection as an element of turbulence |
| title_sort |
magnetic reconnection as an element of turbulence |
| publishDate |
2011 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10235809_v18_n5_p675_Servidio http://hdl.handle.net/20.500.12110/paper_10235809_v18_n5_p675_Servidio |
| _version_ |
1768546638081556480 |