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Electrocapillary instability of a conducting liquid cylinder

Journal Article · · Journal of Experimental and Theoretical Physics
The electrocapillary instability of a conducting liquid cylinder is analyzed. Exact solutions to the linearized Navier-Stokes equations are examined. Growth rates are found for several unstable modes, including both axisymmetric and nonaxisymmetric ones. Special attention is given to the electric field effects on the temporal growth and length scales of unstable modes. It is shown that, whereas capillary instability is axisymmetric in the absence of electric field, nonaxisymmetric surface modes also become unstable in a nonzero electric field, growing with time. With increasing electric field strength, azimuthal modes are 'switched on' (begin to grow with time) sequentially and the highest temporal growth rate monotonically increases.
OSTI ID:
21242007
Journal Information:
Journal of Experimental and Theoretical Physics, Journal Name: Journal of Experimental and Theoretical Physics Journal Issue: 5 Vol. 106; ISSN JTPHES; ISSN 1063-7761
Country of Publication:
United States
Language:
English

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