Results 51 to 60 of about 4,233 (235)
Pressure Dependence of Liquid Iron Viscosity From Machine‐Learning Molecular Dynamics
Abstract We have developed a machine‐learning potential that accurately models the behavior of iron under the conditions of Earth's core. By performing numerous nanosecond scale equilibrium molecular dynamics simulations, the viscosities of liquid iron for the whole outer core conditions are obtained with much less uncertainty.
Kai Luo, Xuyang Long, R. E. Cohen
wiley +1 more source
The "Yin-Yang Grid": An Overset Grid in Spherical Geometry
A new kind of overset grid, named Yin-Yang grid, for spherical geometry is proposed. The Yin-Yang grid is composed of two identical component grids that are combined in a complemental way to cover a spherical surface with partial overlap on their ...
Akira Kageyama +46 more
core +1 more source
Abstract Mercury's tectonic record is dominated by shortening landforms, including lobate scarps, high‐relief ridges and wrinkle ridges. Previous analyses of these structures have used displacement–length ratios to constrain the planet's global contraction to a range of either no more than 2 km or up to 7 km.
A. Broquet, J. C. Andrews‐Hanna
wiley +1 more source
A Model of the Geodynamo [PDF]
Summary The problem of the generation of the geomagnetic field by convection in the Earth's core is considered. The complete hydromagnetic problem including the Lorentz force is solved in the case of a cylindrical configuration. Because of the dominant effect of rotation this configuration incorporates the essential features of the dynamo process in
openaire +2 more sources
Motional Induction in Ganymede's Ocean
Abstract We investigate the magnetic signature of oceanic circulation in Ganymede's subsurface ocean using kinematic induction modeling. Our approach couples zonal jet flows from rotating thermal convection simulations with magnetic field models incorporating Ganymede's internal dynamo and external contributions from Jupiter.
Simon Cabanes +2 more
wiley +1 more source
Stochastic model of 6-jet kinematic dynamo [PDF]
The low-moded stochastic model of kinematic geodynamo is studied. The model is based on the indirect data about the large-scale structure of convection.
Vodinchar Gleb, Feshchenko Liubov
doaj +1 more source
Scaling of Latitude‐Dependent Heat Transport in Geostrophic Convection
Abstract Latitudinal variations in heat transport shape the thermal and magnetic evolution of rapidly rotating planets, stars, and icy moons. Although global simulations have revealed strong equatorial–polar contrasts, a predictive scaling theory has been lacking.
Veeraraghavan Kannan +2 more
wiley +1 more source
Kinematic-gravity model of geodynamo
Based on the results of solving the inverse problem of magnetometry and analysis of some known models of the Earth magnetic field generation a model is proposed in which the current producing magnetic field is the vortex motion of positively charged ...
V.A. Kochnev
doaj +1 more source
The dynamo bifurcation in rotating spherical shells
We investigate the nature of the dynamo bifurcation in a configuration applicable to the Earth's liquid outer core, i.e. in a rotating spherical shell with thermally driven motions.
Dormy, Emmanuel, Morin, Vincent
core +2 more sources
Decadal Stability of Multi‐Scale Core‐Mantle Boundary in Core‐Reflections of Repeating Earthquakes
Abstract Temporal changes near the core‐mantle boundary (CMB) would trigger insights into ongoing thermal and chemical interactions between the Earth's core and mantle. Here, we search for multidecadal temporal changes in the CMB topography and heterogeneity using waveform similarity analysis of core‐reflected phases (PcP, ScP, and ScS) from global ...
Tianyu Cui +5 more
wiley +1 more source

