FREQUENCY-DEPENDENCE OF ELECTRORHEOLOGICAL FLUIDS IN AN AC ELECTRIC-FIELD

Authors
LU KQ WEN WJ LI CX XIE SS
Citation
Kq. Lu et al., FREQUENCY-DEPENDENCE OF ELECTRORHEOLOGICAL FLUIDS IN AN AC ELECTRIC-FIELD, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 52(6), 1995, pp. 6329-6332
Citations number
15
Categorie Soggetti
Physycs, Mathematical","Phsycs, Fluid & Plasmas
Journal title
Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics → ACNP
ISSN journal
1063651X
Volume
52
Issue
6
Year of publication
1995
Part
B
Pages
6329 - 6332
Database
ISI
SICI code
1063-651X(1995)52:6<6329:FOEFIA>2.0.ZU;2-M
Abstract
The frequency dependence of the shear stress of electrorheological (ER ) fluid has been studied. We find that the shear stresses of some wate r-free ER fluids increase monotonically with the frequency and tend to reach saturated values at high frequency. The measurements on KNbO3-s ilicone-oil ER fluid show that the shear stresses under a 10(3) Hz fre quency ac field are several times or even an order of magnitude larger than that under a de held for the same field strength. The polarizati on current of the particles in an ac held may strengthen the interacti on between them.