A Self-consistent Model of the Solar Tachocline
| Autor: | Toby S. Wood, Nicholas H. Brummell |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Buoyancy
astro-ph.SR FOS: Physical sciences Tachocline rotation [Sun] engineering.material Astronomy & Astrophysics Physical Chemistry 01 natural sciences Atomic evolution [Sun] 010305 fluids & plasmas Physics::Geophysics Physics::Fluid Dynamics symbols.namesake Particle and Plasma Physics 0103 physical sciences Astrophysics::Solar and Stellar Astrophysics Nuclear Astronomical And Space Sciences 010303 astronomy & astrophysics Solar and Stellar Astrophysics (astro-ph.SR) Physics::Atmospheric and Oceanic Physics Physics Physical Chemistry (Incl. Structural) interior [Sun] Organic Chemistry Molecular Astronomy and Astrophysics Laminar flow Mechanics Radiation zone Astrophysics - Solar and Stellar Astrophysics Convection zone Space and Planetary Science magnetic field [stars] symbols engineering Solar rotation Astrophysics::Earth and Planetary Astrophysics (MHD) Magnetohydrodynamics magnetohydrodynamics Lorentz force |
| Zdroj: | Wood, TS; & Brummell, NH. (2018). A Self-consistent Model of the Solar Tachocline. ASTROPHYSICAL JOURNAL, 853(2), 97-97. doi: 10.3847/1538-4357/aaa6d5. UC Santa Cruz: Retrieved from: http://www.escholarship.org/uc/item/4c467276 The Astrophysical Journal, vol 853, iss 2 ASTROPHYSICAL JOURNAL, vol 853, iss 2 |
| DOI: | 10.3847/1538-4357/aaa6d5. |
| Popis: | We present a local but fully nonlinear model of the solar tachocline, using three-dimensional direct numerical simulations. The tachocline forms naturally as a statistically steady balance between Coriolis, pressure, buoyancy and Lorentz forces beneath a turbulent convection zone. Uniform rotation is maintained in the radiation zone by a primordial magnetic field, which is confined by meridional flows in the tachocline and convection zone. Such balanced dynamics has previously been found in idealised laminar models, but never in fully self-consistent numerical simulations. Comment: Accepted for publication in the Astrophysical Journal |
| Databáze: | OpenAIRE |
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