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: ResearchConference 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: ResearchConference 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.
    @inbook{4c7030e3ac5742e8a22fc309ec747c91,
    title = "Prediction of rheological properties of structured fluids in homogeneous shear based on a realizable model for the orientation dyad",
    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.",
    author = "YoChan Kim and Liping Jia and André Bérnard and Petty, {Charles A.}",
    year = "2006",
    isbn = "081691012X",
    booktitle = "AIChE Annual Meeting, Conference Proceedings",

    }

    TY - CHAP

    T1 - Prediction of rheological properties of structured fluids in homogeneous shear based on a realizable model for the orientation dyad

    AU - Kim,YoChan

    AU - Jia,Liping

    AU - Bérnard,André

    AU - Petty,Charles A.

    PY - 2006

    Y1 - 2006

    N2 - 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.

    AB - 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.

    UR - http://www.scopus.com/inward/record.url?scp=80053786269&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=80053786269&partnerID=8YFLogxK

    M3 - Conference contribution

    SN - 081691012X

    SN - 9780816910120

    BT - AIChE Annual Meeting, Conference Proceedings

    ER -