Aggregation, fragmentation, and the nonlinear dynamics of electrorheological fluids in oscillatory shear

Journal Article · Mon Oct 09 00:00:00 EDT 1995 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.75.2827· OSTI ID:118588

Martin, J E; Odinek, J ^[1]

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1. Advanced Materials Physics Division, Sandia National Laboratories, Albuquerque, New Mexico 87185-1421 (United States)

We have conducted a time-resolved, two-dimensional light scattering study of the nonlinear dynamics of field-induced structures in an electrorheological fluid subjected to oscillatory shear. We have developed a theoretical description of the observed dynamics by considering the response of a fragmenting and aggregating particle chain to the prevailing hydrodynamic and electrostatic forces. This structural theory is then used to describe the nonlinear rheology of electrorheological fluids.

• Research Organization: Sandia National Laboratory
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 118588
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 15 Vol. 75; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

40 CHEMISTRY
66 PHYSICS
DYNAMICS
FLUIDS
FRAGMENTATION
LIGHT SCATTERING
NONLINEAR PROBLEMS
RHEOLOGY