Calculation of the average electromotive force for a rotating convective envelope
Journal Article
·
· Magnetohydrodynamics (Engl. Transl.); (United States)
OSTI ID:6143959
The average electromotive force for a rotating density-stratified convective envelope was calculated for purposes of studying the nonlinear turbulent dynamo in an anisotropic medium, when anisotropy occurs both owing to a pseudovector field (angular velocity) and a vector field (density gradient). A magnetic field in a conducting turbulent medium was considered. Equations of ideal magnetohydrodynamics in a reference system rotating with a constant angular velocity were derived. The nonlinear interaction of pulsations were described approximately by introducing relaxing terms into the equations. The correlation tensor of the turbulence was derived. Batchelor's hypothesis was used to simplify the calculations. Turbulent electromotive force was expressed in correlation terms of the random velocities and magnetic pulsations. The effects following from the equations are discussed.
- OSTI ID:
- 6143959
- Journal Information:
- Magnetohydrodynamics (Engl. Transl.); (United States), Journal Name: Magnetohydrodynamics (Engl. Transl.); (United States) Vol. 23:3; ISSN MGHDA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
640430* -- Fluid Physics-- Magnetohydrodynamics
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANGULAR VELOCITY
ANNULAR SPACE
CLOSED CONFIGURATIONS
CONFIGURATION
CONVECTION
DENSITY
DIFFUSION
ELECTROMOTIVE FORCE
ENERGY TRANSFER
FLOW RATE
FLUID FLOW
FLUID MECHANICS
HEAT TRANSFER
HYDRODYNAMICS
MAGNETIC FIELD CONFIGURATIONS
MAGNETIC FIELDS
MAGNETOHYDRODYNAMICS
MASS TRANSFER
MATHEMATICAL MODELS
MECHANICS
NONLINEAR PROBLEMS
PHYSICAL PROPERTIES
PULSATIONS
SPACE
STRATIFICATION
TOROIDAL CONFIGURATION
TURBULENT FLOW
VELOCITY
VORTEX FLOW
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANGULAR VELOCITY
ANNULAR SPACE
CLOSED CONFIGURATIONS
CONFIGURATION
CONVECTION
DENSITY
DIFFUSION
ELECTROMOTIVE FORCE
ENERGY TRANSFER
FLOW RATE
FLUID FLOW
FLUID MECHANICS
HEAT TRANSFER
HYDRODYNAMICS
MAGNETIC FIELD CONFIGURATIONS
MAGNETIC FIELDS
MAGNETOHYDRODYNAMICS
MASS TRANSFER
MATHEMATICAL MODELS
MECHANICS
NONLINEAR PROBLEMS
PHYSICAL PROPERTIES
PULSATIONS
SPACE
STRATIFICATION
TOROIDAL CONFIGURATION
TURBULENT FLOW
VELOCITY
VORTEX FLOW