Prediction of rheological properties of structured fluids in homogeneous shear based on a realizable model for the orientation dyad

YoChan Kim, Liping Jia, André Bérnard, Charles A. Petty

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

Abstract

Non-spherical particles dispersed in a Newtonian fluid have a tendency to align in shear flows because of viscous drag. This phenomenon is opposed by rotary diffusion induced by particle-particle interactions. At high concentrations and in the absence of hydrodynamic couples, self-alignment can also occur because excluded volume interactions prevent the return to isotropy of anisotropic states by rotary Brownian motion. The consequences of the foregoing balance between hydrodynamic and diffusive alignment processes on the microstructure directly impact the rheology and, thereby, the processing of suspensions. The objective of this research is to predict the microstructure and rheological properties of axisymmetric "ellipsoidal" particle suspensions in homogeneous flows.

LanguageEnglish (US)
Title of host publicationAIChE Annual Meeting, Conference Proceedings
StatePublished - 2006
Event2006 AIChE Annual Meeting - San Francisco, CA, United States
Duration: Nov 12 2006Nov 17 2006

Other

Other2006 AIChE Annual Meeting
CountryUnited States
CitySan Francisco, CA
Period11/12/0611/17/06

Profile

Suspensions
Hydrodynamics
Microstructure
Fluids
Particle interactions
Brownian movement
Shear flow
Rheology
Drag
Processing

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Chemistry(all)

Cite this

Prediction of rheological properties of structured fluids in homogeneous shear based on a realizable model for the orientation dyad. / Kim, YoChan; Jia, Liping; Bérnard, André; Petty, Charles A.

AIChE Annual Meeting, Conference Proceedings. 2006.

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

Kim, Y, Jia, L, Bérnard, A & Petty, CA 2006, Prediction of rheological properties of structured fluids in homogeneous shear based on a realizable model for the orientation dyad. in AIChE Annual Meeting, Conference Proceedings. 2006 AIChE Annual Meeting, San Francisco, CA, United States, 11/12/06.
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