Weakly nonlinear analysis of rotating magnetoconvection with anisotropic diffusivities in earth’s core near the onset of oscillatory instability
| Autor: | Yadagiri, Rameshwar, Rani, Hari Ponnamma, Nayak, Krishnendu, Jozef, Brestensky |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Zdroj: | XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) |
| Popis: | The influence of anisotropic diffusive coefficients on the stability of the horizontal fluid planar layer, rotating about vertical axis, and permeated by a horizontal homogeneous magnetic field is studied. The linear stability analysis is performed using the separable solutions in the form of horizontal rolls. The onset of overstable motionsisexamined [1]as well as of stationary ones. The weakly nonlinear behaviour of the convectivemotionsin the vicinity of primary instability threshold is studied.The efficiency to transport heat is compared betweenoverstableand stationary modes.References:[1]T. Šoltis, J. Brestenský, (2009), Rotating magnetoconvection with anisotropic diffusivities in the Earth’s core, Physics of the Earth and Planetary Interiors, 178, 27-38. The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|