Results 1  10
of
170
Liquid sodium model of earth’s outer core
, 2004
"... Convective motions in Earth’s outer core are responsible for the generation of the geomagnetic field. We present liquid sodium convection experiments in a spherical vessel, designed to model the convective state of Earth’s outer core. Heat transfer, zonal fluid velocities, and properties of temper ..."
Abstract

Cited by 2 (0 self)
 Add to MetaCart
: heat transfer concentrates in the equatorial region with an applied magnetic field parallel to the rotation axis. In the context of Earth’s outer core, our observations imply a thermal Rayleigh number Ra = 1022 and a convective velocity near 10−5 m/s. There is likely a knee in the energy spectrum
Magnetostrophic MRI in the Earth’s Outer Core
, 901
"... We show that a simple, modified version of the Magnetorotational Instability (MRI) can develop in the outer liquid core of the Earth, in the presence of a background shear. It requires either thermal wind, or a primary instability, such as convection, to drive a weak differential rotation within the ..."
Abstract
 Add to MetaCart
We show that a simple, modified version of the Magnetorotational Instability (MRI) can develop in the outer liquid core of the Earth, in the presence of a background shear. It requires either thermal wind, or a primary instability, such as convection, to drive a weak differential rotation within
Implication of the lopsided growth for the viscosity of Earth’s inner core
 Earth Planet. Sci. Lett
, 2013
"... Two main seismic features characterize the Earth’s inner core: a NorthSouth polar anisotropy and an EastWest asymmetry of Pwave velocity and attenuation. Anisotropy is expected if shear deformation is induced by convective motions. Translation has recently been put forward as an important mode of ..."
Abstract

Cited by 4 (0 self)
 Add to MetaCart
deformation only in one hemisphere. Keywords: Earth’s inner core, numerical modeling, thermal convection, translation
Simulated climatology of a general circulation model with a hydrological cycle
 Mon. Wea. Rev
, 1965
"... The thermal and dynamical structure of the tropical atmosphere which emerged from the numerical integration of our general circulation model with a simple hydrologic cycle is analyzed in detail. According to the results of our analysis, the lapse rate of zonal mean temperature in the model Tropics i ..."
Abstract

Cited by 142 (13 self)
 Add to MetaCart
The thermal and dynamical structure of the tropical atmosphere which emerged from the numerical integration of our general circulation model with a simple hydrologic cycle is analyzed in detail. According to the results of our analysis, the lapse rate of zonal mean temperature in the model Tropics
GEODYNAMO: NUMERICAL SIMULATIONS
"... The geodynamo is the name given to the mechanism in the Earth’s core that maintains the Earth’s magnetic field (see The Geodynamo). The current consensus is that flow of the liquid iron alloy within the outer core, driven by buoyancy forces and influenced by the Earth’s rotation, generates large ele ..."
Abstract
 Add to MetaCart
The geodynamo is the name given to the mechanism in the Earth’s core that maintains the Earth’s magnetic field (see The Geodynamo). The current consensus is that flow of the liquid iron alloy within the outer core, driven by buoyancy forces and influenced by the Earth’s rotation, generates large
High Accuracy Mantle Convection Simulation through Modern Numerical Methods
, 2011
"... Numerical simulation of the processes in the Earth mantle is a key piece in understanding its dynamics, composition, history, and interaction with the lithosphere and the earth core. However, doing so presents many practical difficulties related to the numerical methods that can accurately represent ..."
Abstract

Cited by 13 (5 self)
 Add to MetaCart
Numerical simulation of the processes in the Earth mantle is a key piece in understanding its dynamics, composition, history, and interaction with the lithosphere and the earth core. However, doing so presents many practical difficulties related to the numerical methods that can accurately
Thermal Convection Analysis in a Rotating Shell by Parallel FEM  Development of a ThermalHydraulic Subsystem of GeoFEM , Concurrency and Computation
"... For investigation of fluid dynamics in the Earth’s outer core and mantle, we have been developing thermalhydraulic subsystem of GeoFEM, which gives a parallel finite element method (FEM) platform. This subsystem is a three dimensional and timedependent simulation code for an incompressible fluid w ..."
Abstract

Cited by 2 (2 self)
 Add to MetaCart
For investigation of fluid dynamics in the Earth’s outer core and mantle, we have been developing thermalhydraulic subsystem of GeoFEM, which gives a parallel finite element method (FEM) platform. This subsystem is a three dimensional and timedependent simulation code for an incompressible fluid
Convection with internal heat sources and thermal turbulence in the Earth’s mantle. Geophys
 J. Int
, 1994
"... The influence of internal heat sources on mantle convection is investigated using numerical calculations of 2D thermal convection in an infinite Prandtl number, incompressible fluid. The geometry is a cylindrical annulus with inner and outer radii in proportion to the whole mantle. Timedependent c ..."
Abstract

Cited by 3 (0 self)
 Add to MetaCart
The influence of internal heat sources on mantle convection is investigated using numerical calculations of 2D thermal convection in an infinite Prandtl number, incompressible fluid. The geometry is a cylindrical annulus with inner and outer radii in proportion to the whole mantle. Time
Experiments on convection in Earth's core tangent cylinder, Earth and Planetary Science Letters
 http://dx.doi.org/10.1017/ S0022112006002540
, 2003
"... Abstract Results of thermal convection experiments in a rotating fluid with a geometry similar to the Earth's core tangent cylinder are presented. We find four different states. In order of increasing Rayleigh number, these are: (1) subcritical (no convection), (2) helical plumes around the ta ..."
Abstract

Cited by 8 (1 self)
 Add to MetaCart
Abstract Results of thermal convection experiments in a rotating fluid with a geometry similar to the Earth's core tangent cylinder are presented. We find four different states. In order of increasing Rayleigh number, these are: (1) subcritical (no convection), (2) helical plumes around
Realistic Solar Surface Convection Simulations
"... . We have performed essentially parameter free simulations with realistic physics of convection near the solar surface. We summarize the physics that is included and compare the simulation results with observations. Excellent agreement is obtained for the depth of the convection zone, the pmode fr ..."
Abstract
 Add to MetaCart
the cores of the downdrafts in which most of the buoyancy work occurs. We show that turbulence and vorticity are mostly confined to the intergranular lanes and underlying downdrafts. Finally, we illustrate our current work on magnetoconvection. 1. Introduction In the outer third of the Sun energy
Results 1  10
of
170