NDLI: Labyrinthine Instability in Dielectric Fluids

Content Provider	IEEE Xplore Digital Library
Author	Zahn, Markus Shumovich, Raymond
Copyright Year	1972
Abstract	The dual to recent work of the labyrinthine instability in magnetic fluids is demonstrated with analysis and measurements using dielectric fluids. Here polarizable fluid layers are placed within an initially uniform electric field tangential to the fluid interface separating two dielectric fluid layers. To eliminate electric space charge effects, alternating electric fields must be applied at a frequency much greater than the larger reciprocal dielectric relaxation time of the fluids. Past theory and measurements have shown that a flat interface in a uniform tangential field is stable if the interface is of infinite extent. If the fluid interface has a finite thickness in the direction of the applied field, reaction fields cause nonuniform field components tangential to the fluid interface. Above a critical magnitude the resultant field destabilizes the fluid interface forming labyrinthine patterns. An interfacial stability analysis and an energy minimization method are compared to measurements.
Sponsorship	IEEE Industry Applications Society
Starting Page	53
Ending Page	61
Page Count	9
File Size	4843268
File Format	PDF
ISSN	00939994
Volume Number	IA-21
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1985-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetic field measurement Magnetic liquids Dielectric measurements Magnetic analysis Polarization Space charge Frequency Stability analysis Minimization methods Energy measurement
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering

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