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

Journal Article · Thu Jan 15 00:00:00 EST 2015 · Journal of Experimental and Theoretical Physics

DOI:https://doi.org/10.1134/S1063776115010124· OSTI ID:22472426

Mordvinov, A. N.; Petrov, D. A. ^[1]

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1. Perm State University (Russian Federation)

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.

• OSTI ID: 22472426
• Journal Information: Journal of Experimental and Theoretical Physics, Vol. 120, Issue 1; Other Information: Copyright (c) 2015 Pleiades Publishing, Inc.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7761
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CAPACITORS
CATHODES
CONVECTION
ELECTRIC FIELDS
EQUILIBRIUM
FLUIDS
GRAVITATION
HEATING
NONLINEAR PROBLEMS
PRANDTL NUMBER