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Turbulent Thermal Convection in the Earth’s Liquid Coreстатья
Информация о цитировании статьи получена из
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 22 апреля 2026 г.
- Авторы: Kotelkin V.D., Aranovich L.Y.
- Журнал: Doklady Earth Sciences
- Том: 526
- Год издания: 2026
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 42
- Последняя страница: 49
- DOI: 10.1134/S1028334X25609496
- Аннотация: The Boussinesq approximation generalized with respect to compressibility of the liquid core is used in direct numerical 3D simulation of turbulent thermal convection in a spherical shell. The simulation employed Archimedes, Rossby, Reynolds and Péclet numbers corresponding to Ar = 1010, Ro = 10−7, and Re = Pe = 106. Introducing into the model Reynolds and Péclet numbers, which were taken equal to 1 in the earlier simulations, has allowed the increase in Rayleigh number up to Ra = 1022, taking their large values into account. Modeling results indicate the formation of horizontal structures orthogonal to the axis of rotation in the liquid core, which move in opposite directions in the rotating spherical shell. Averaged rotation velocity of the core is characterized by turbulent oscillations similar to the observed length of day oscillations (LOD).
- Добавил в систему: Котелкин Вячеслав Дмитриевич