Anisotropic third-moment estimates of the energy cascade in solar wind turbulence using multispacecraft data
The first direct determination of the inertial range energy cascade rate, using an anisotropic form of Yaglom's law for magnetohydrodynamic turbulence, is obtained in the solar wind with multispacecraft measurements. The two-point mixed third-order structure functions of Elsässer fluctuations a...
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2011
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v107_n16_p_Osman http://hdl.handle.net/20.500.12110/paper_00319007_v107_n16_p_Osman |
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paper:paper_00319007_v107_n16_p_Osman2023-06-08T14:57:56Z Anisotropic third-moment estimates of the energy cascade in solar wind turbulence using multispacecraft data Dasso, Sergio Ricardo Direct determination Energy cascade Linear scaling Low frequency limits Magnetohydrodynamic turbulence Non-adiabatic Solar-wind turbulence Structure functions Third-order Two-point Velocity field Anisotropy Heating Magnetic fields Magnetohydrodynamics Solar wind Spheres Turbulence Velocity Solar energy The first direct determination of the inertial range energy cascade rate, using an anisotropic form of Yaglom's law for magnetohydrodynamic turbulence, is obtained in the solar wind with multispacecraft measurements. The two-point mixed third-order structure functions of Elsässer fluctuations are integrated over a sphere in magnetic field-aligned coordinates, and the result is consistent with a linear scaling. Therefore, volume integrated heating and cascade rates are obtained that, unlike previous studies, make only limited assumptions about the underlying spectral geometry of solar wind turbulence. These results confirm the turbulent nature of magnetic and velocity field fluctuations in the low frequency limit, and could supply the energy necessary to account for the nonadiabatic heating of the solar wind. © 2011 American Physical Society. Fil:Dasso, S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2011 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v107_n16_p_Osman http://hdl.handle.net/20.500.12110/paper_00319007_v107_n16_p_Osman |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Direct determination Energy cascade Linear scaling Low frequency limits Magnetohydrodynamic turbulence Non-adiabatic Solar-wind turbulence Structure functions Third-order Two-point Velocity field Anisotropy Heating Magnetic fields Magnetohydrodynamics Solar wind Spheres Turbulence Velocity Solar energy |
| spellingShingle |
Direct determination Energy cascade Linear scaling Low frequency limits Magnetohydrodynamic turbulence Non-adiabatic Solar-wind turbulence Structure functions Third-order Two-point Velocity field Anisotropy Heating Magnetic fields Magnetohydrodynamics Solar wind Spheres Turbulence Velocity Solar energy Dasso, Sergio Ricardo Anisotropic third-moment estimates of the energy cascade in solar wind turbulence using multispacecraft data |
| topic_facet |
Direct determination Energy cascade Linear scaling Low frequency limits Magnetohydrodynamic turbulence Non-adiabatic Solar-wind turbulence Structure functions Third-order Two-point Velocity field Anisotropy Heating Magnetic fields Magnetohydrodynamics Solar wind Spheres Turbulence Velocity Solar energy |
| description |
The first direct determination of the inertial range energy cascade rate, using an anisotropic form of Yaglom's law for magnetohydrodynamic turbulence, is obtained in the solar wind with multispacecraft measurements. The two-point mixed third-order structure functions of Elsässer fluctuations are integrated over a sphere in magnetic field-aligned coordinates, and the result is consistent with a linear scaling. Therefore, volume integrated heating and cascade rates are obtained that, unlike previous studies, make only limited assumptions about the underlying spectral geometry of solar wind turbulence. These results confirm the turbulent nature of magnetic and velocity field fluctuations in the low frequency limit, and could supply the energy necessary to account for the nonadiabatic heating of the solar wind. © 2011 American Physical Society. |
| author |
Dasso, Sergio Ricardo |
| author_facet |
Dasso, Sergio Ricardo |
| author_sort |
Dasso, Sergio Ricardo |
| title |
Anisotropic third-moment estimates of the energy cascade in solar wind turbulence using multispacecraft data |
| title_short |
Anisotropic third-moment estimates of the energy cascade in solar wind turbulence using multispacecraft data |
| title_full |
Anisotropic third-moment estimates of the energy cascade in solar wind turbulence using multispacecraft data |
| title_fullStr |
Anisotropic third-moment estimates of the energy cascade in solar wind turbulence using multispacecraft data |
| title_full_unstemmed |
Anisotropic third-moment estimates of the energy cascade in solar wind turbulence using multispacecraft data |
| title_sort |
anisotropic third-moment estimates of the energy cascade in solar wind turbulence using multispacecraft data |
| publishDate |
2011 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v107_n16_p_Osman http://hdl.handle.net/20.500.12110/paper_00319007_v107_n16_p_Osman |
| work_keys_str_mv |
AT dassosergioricardo anisotropicthirdmomentestimatesoftheenergycascadeinsolarwindturbulenceusingmultispacecraftdata |
| _version_ |
1768542071649468416 |