Electroconvection of a poorly conducting fluid under unipolar charge injection in a steady electric field

We study the stability of equilibrium and nonlinear regimes of a nonuniformly heated poorly conducting fluid in a horizontal capacitor in the gravity field and in a dc electric field under a unipolar charge injection. A model in which the density of charges injected from the cathode is proportional...

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Bibliographic Details
Published in:Journal of experimental and theoretical physics 2015-01, Vol.120 (1), p.161-168
Main Authors: Il’in, V. A., Mordvinov, A. N., Petrov, D. A.
Format: Article
Language:English
Subjects:
Analysis
CAPACITORS
CATHODES
Classical and Quantum Gravitation
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
CONVECTION
ELECTRIC FIELDS
Elementary Particles
EQUILIBRIUM
FLUIDS
GRAVITATION
HEATING
Nonlinear
NONLINEAR PROBLEMS
Particle and Nuclear Physics
Physics
Physics and Astronomy
PRANDTL NUMBER
Quantum Field Theory
Relativity Theory
Soft Matter Physics
Solid State Physics
Statistical
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Summary:We study the stability of equilibrium and nonlinear regimes of a nonuniformly heated poorly conducting fluid in a horizontal capacitor in the gravity field and in a dc electric field under a unipolar charge injection. A model in which the density of charges injected from the cathode is proportional to the electric field strength in the capacitor is considered. The dependences of critical parameters on the degree of heating and charge injection are determined. The effect of the Prandtl number on the equilibrium instability boundary and on the frequency of neutral vibrations is analyzed. Nonlinear regimes of electroconvection are studied for heating from below.
ISSN:1063-7761
1090-6509
DOI:10.1134/S1063776115010124