Calculation of the average electromotive force for a rotating convective envelope

Journal Article · Fri Jan 01 00:00:00 EST 1988 · Magnetohydrodynamics (Engl. Transl.); (United States)

OSTI ID:6143959

Plieva, N A

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), Vol. 23:3; Other Information: Translated from Magn. Gidrodin.; 23: No. 3, 8-14(Jul-Sep 1987)
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ELECTROMOTIVE FORCE
MATHEMATICAL MODELS
VORTEX FLOW
ANGULAR VELOCITY
CONVECTION
DENSITY
DIFFUSION
FLOW RATE
MAGNETIC FIELD CONFIGURATIONS
MAGNETIC FIELDS
MAGNETOHYDRODYNAMICS
NONLINEAR PROBLEMS
PULSATIONS
STRATIFICATION
TOROIDAL CONFIGURATION
TURBULENT FLOW
ANNULAR SPACE
CLOSED CONFIGURATIONS
CONFIGURATION
ENERGY TRANSFER
FLUID FLOW
FLUID MECHANICS
HEAT TRANSFER
HYDRODYNAMICS
MASS TRANSFER
MECHANICS
PHYSICAL PROPERTIES
SPACE
VELOCITY
640430* - Fluid Physics- Magnetohydrodynamics