Particle structure evolution in micro flow of electrorheological suspensions in nonuniform electric fields

J. Kadaksham, J. Batton, P. Singh, N. Aubry

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A modified version of the distributed Lagrange multiplier method (DLM) is used to study the dynamics of particle scale structure in electrorheological (ER) liquids subjected to spatially non-uniform electric field (also see [7, 18]). The time duration in which the particles are collected, near the electric field magnitude minimums or maximums, depends on a parameter defined by the ratio of the dielectrophoretic and viscous forces. Another parameter defined by the ratio of the electrostatic particle-particle interaction and dielectrophoretic forces also influences the time duration in which the particles are collected, as when this parameter is greater than one the particles to organize in chains which decreases their speed. The numerical results agree qualitatively with experiments which show that when the electrostatic particle-particle forces dominate the particles form chains that collect near the electrode edges.

Original languageEnglish (US)
Title of host publicationProceedings of the 4th ASME/JSME Joint Fluids Engineering Conference
Subtitle of host publicationVolume 2, Part C, Symposia
EditorsA. Ogut, Y. Tsuji, M. Kawahashi
PublisherAmerican Society of Mechanical Engineers
Pages2411-2416
Number of pages6
ISBN (Print)0791836967, 9780791836965
DOIs
StatePublished - Jan 1 2003
Event4th ASME/JSME Joint Fluids Engineering Conference - Honolulu, HI, United States
Duration: Jul 6 2003Jul 10 2003

Publication series

NameProceedings of the ASME/JSME Joint Fluids Engineering Conference
Volume2 C

Other

Other4th ASME/JSME Joint Fluids Engineering Conference
CountryUnited States
CityHonolulu, HI
Period7/6/037/10/03

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

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