Estimating turbulent electrovortex flow parameters hear the dynamo cycle bifurcation point

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

OSTI ID:6296539

Zimin, V D; Kolpakov, N Yu; Khripchenko, S Yu

Models for estimating turbulent electrovortex flow parameters, derived in earlier studies, were delineated and extended in this paper to express those parameters near the dynamo cycle bifurcation point in a spherical cavity. Toroidal and poloidal fields rising from the induction currents within the liquid metal and their electrovortex interactions were calculated. Toroidal field strengthening by the poloidal electrovortex flow, the first part of the dynamo loop, was determined by the viscous dissipation in the liquid metal. The second part of the loop, in which the toroidal field localized in the liquid metal is converted to a poloidal field and emerges from the sphere, was also established. The dissipative effects near the critical magnetic Reynolds number were estimated.

• OSTI ID: 6296539
• Journal Information: Magnetohydrodynamics (Engl. Transl.); (United States), Vol. 24:1; Other Information: Translated from Magnit. Girodinam.; 24: No. 1, 68-75(Jan-Mar 1988)
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
42 ENGINEERING
LIQUID METALS
VORTEX FLOW
MHD GENERATORS
FLOW MODELS
CURRENT DENSITY
ELECTRIC CURRENTS
ELECTROHYDRODYNAMICS
ENERGY LOSSES
HEAT TRANSFER
INDUCTION
MAGNETIC FIELD CONFIGURATIONS
MAGNETIC FIELDS
MAGNETIC REYNOLDS NUMBER
MAGNETOHYDRODYNAMICS
SODIUM
STOKES LAW
TEMPERATURE EFFECTS
THERMAL CONDUCTIVITY
TOROIDAL CONFIGURATION
TURBULENT FLOW
ALKALI METALS
ANNULAR SPACE
CLOSED CONFIGURATIONS
CONFIGURATION
CURRENTS
DIRECT ENERGY CONVERTERS
ELEMENTS
ENERGY TRANSFER
FLUID FLOW
FLUID MECHANICS
FLUIDS
HYDRODYNAMICS
LIQUIDS
LOSSES
MATHEMATICAL MODELS
MECHANICS
METALS
PHYSICAL PROPERTIES
REYNOLDS NUMBER
SPACE
THERMODYNAMIC PROPERTIES
300104* - MHD Generators- Duct Engineering & Fluid Dynamics
640430 - Fluid Physics- Magnetohydrodynamics
640440 - Fluid Physics- Electrohydrodynamics
420400 - Engineering- Heat Transfer & Fluid Flow