Browsing ELibrary by Subject "EARTH'S CORE"

Now showing items 1-5 of 5

A COMPARISON OF SUBGRID-SCALE MODELS FOR LARGE-EDDY SIMULATIONS OF CONVECTION IN THE EARTH'S CORE

Buffett B.A. (2003)

Large-eddy simulations provide a strategy for modelling large-scale flow when the smallest scales are not resolved. The approach relies on spatial filtering to eliminate scales smaller than the grid spacing, but requires ...
CORE-MANTLE RELATIVE MOTION AND COUPLING

Vanyo J.P. (2004)

Core motion induced by lunisolar precession of the mantle is analysed and compared with experiments and Earth observations. First-order motion has the core axis lagging the mantle axis in precession by a small angle. This ...
ENERGETICS OF NUMERICAL GEODYNAMO MODELS

Buffett B.A.; Bloxham J. (2002)

Global energy balances provide a useful framework for assessing the operation of numerical geodynamo models. We apply a spectral decomposition to the magnetic and kinetic energy equations to assess how the magnetic field ...
EXPERIMENTAL EVIDENCE OF NON-LINEAR RESONANCE EFFECTS BETWEEN RETROGRADE PRECESSION AND THE TILT-OVER MODE WITHIN A SPHEROID

Noir J.; Cardin P.; Jault D.; Masson J.P. (2003)

The Poincare flow (also known as the tilt-over mode) in a precessing cavity filled with water is investigated experimentally. Assuming that the flow is mainly a solid-body rotation, we have used three independent techniques ...
GROSS THERMODYNAMICS OF TWO-COMPONENT CORE CONVECTION

Gubbins D.; Alfe D.; Masters G.; Price G.D.; Gillan M. (2004)

We model the inner core by an alloy of iron and 8 per cent sulphur or silicon and the outer core by the same mix with an additional 8 per cent oxygen. This composition matches the densities of seismic model, Preliminary ...

Browsing ELibrary by Subject "EARTH'S CORE"

Browsing ELibrary by Subject "EARTH'S CORE"

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