Stick boundary conditions and rotational velocity auto-correlation functions for colloidal particles in a coarse-grained representation of the solvent

J.T. Padding, A. Wysocki, H. Löwen, A.A. Louis

    Research output: Contribution to journalArticleAcademicpeer-review

    59 Citations (Scopus)

    Abstract

    We show how to implement stick boundary conditions for a spherical colloid in a solvent that is coarse-grained by the method of stochastic rotation dynamics. This allows us to measure colloidal rotational velocity auto-correlation functions by direct computer simulation. We find quantitative agreement with Enskog theory for short times and with hydrodynamic mode-coupling theory for longer times. For aqueous colloidal suspensions, the Enskog contribution to the rotational friction is larger than the hydrodynamic one when the colloidal radius drops below 35 nm. © 2005 IOP Publishing Ltd.
    Original languageEnglish
    Pages (from-to)S3393-S3399
    Number of pages7
    JournalJournal of Physics : Condensed Matter
    Volume17
    Issue number45
    DOIs
    Publication statusPublished - 2005

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    Autocorrelation
    autocorrelation
    colloids
    Hydrodynamics
    hydrodynamics
    Boundary conditions
    boundary conditions
    Colloids
    coupled modes
    Suspensions
    friction
    computerized simulation
    Friction
    radii
    Computer simulation

    Cite this

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    title = "Stick boundary conditions and rotational velocity auto-correlation functions for colloidal particles in a coarse-grained representation of the solvent",
    abstract = "We show how to implement stick boundary conditions for a spherical colloid in a solvent that is coarse-grained by the method of stochastic rotation dynamics. This allows us to measure colloidal rotational velocity auto-correlation functions by direct computer simulation. We find quantitative agreement with Enskog theory for short times and with hydrodynamic mode-coupling theory for longer times. For aqueous colloidal suspensions, the Enskog contribution to the rotational friction is larger than the hydrodynamic one when the colloidal radius drops below 35 nm. {\circledC} 2005 IOP Publishing Ltd.",
    author = "J.T. Padding and A. Wysocki and H. L{\"o}wen and A.A. Louis",
    year = "2005",
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    Stick boundary conditions and rotational velocity auto-correlation functions for colloidal particles in a coarse-grained representation of the solvent. / Padding, J.T.; Wysocki, A.; Löwen, H.; Louis, A.A.

    In: Journal of Physics : Condensed Matter, Vol. 17, No. 45, 2005, p. S3393-S3399.

    Research output: Contribution to journalArticleAcademicpeer-review

    TY - JOUR

    T1 - Stick boundary conditions and rotational velocity auto-correlation functions for colloidal particles in a coarse-grained representation of the solvent

    AU - Padding, J.T.

    AU - Wysocki, A.

    AU - Löwen, H.

    AU - Louis, A.A.

    PY - 2005

    Y1 - 2005

    N2 - We show how to implement stick boundary conditions for a spherical colloid in a solvent that is coarse-grained by the method of stochastic rotation dynamics. This allows us to measure colloidal rotational velocity auto-correlation functions by direct computer simulation. We find quantitative agreement with Enskog theory for short times and with hydrodynamic mode-coupling theory for longer times. For aqueous colloidal suspensions, the Enskog contribution to the rotational friction is larger than the hydrodynamic one when the colloidal radius drops below 35 nm. © 2005 IOP Publishing Ltd.

    AB - We show how to implement stick boundary conditions for a spherical colloid in a solvent that is coarse-grained by the method of stochastic rotation dynamics. This allows us to measure colloidal rotational velocity auto-correlation functions by direct computer simulation. We find quantitative agreement with Enskog theory for short times and with hydrodynamic mode-coupling theory for longer times. For aqueous colloidal suspensions, the Enskog contribution to the rotational friction is larger than the hydrodynamic one when the colloidal radius drops below 35 nm. © 2005 IOP Publishing Ltd.

    U2 - 10.1088/0953-8984/17/45/027

    DO - 10.1088/0953-8984/17/45/027

    M3 - Article

    VL - 17

    SP - S3393-S3399

    JO - Journal of Physics : Condensed Matter

    JF - Journal of Physics : Condensed Matter

    SN - 0953-8984

    IS - 45

    ER -