{
  "id": "1402.1628",
  "version": "v1",
  "published": "2014-02-07T12:59:33.000Z",
  "updated": "2014-02-07T12:59:33.000Z",
  "title": "Driven colloidal suspensions in confinement and density functional theory: Microstructure and wall-slip",
  "authors": [
    "Artem A. Aerov",
    "Matthias Krüger"
  ],
  "comment": "11 pages, 8 figures",
  "categories": [
    "cond-mat.stat-mech",
    "cond-mat.soft"
  ],
  "abstract": "We theoretically investigate general properties of driven (sheared) colloidal suspensions in confinement, based on methods of classical density functional theory. In the absence of an exact closed (Smoluchowski-) equation for the one-particle density under shear, we formulate a set of general conditions for approximations, and show that a simple closure fulfills them. The exact microscopic stress tensor is identified. Exemplifying the situation near a wall (oriented parallel to the direction of shear), we note that the microscopic shear stress is not necessarily homogeneous. Formulating a second equation additional to the Smoluchowski equation, we achieve a homogeneous shear stress, and thereby compute the local flow velocity near the wall. This finally leads to a slip length of the complex fluid at the wall.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2014-02-07T12:59:33.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "density functional theory",
      "driven colloidal suspensions",
      "confinement",
      "microstructure",
      "exact microscopic stress tensor"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1063/1.4866450",
      "journal": "Journal of Chemical Physics",
      "year": 2014,
      "month": "Mar",
      "volume": 140,
      "number": 9,
      "pages": "094701"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 11,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2014JChPh.140i4701A"
    }
  }
}