{
  "id": "0907.4497",
  "version": "v3",
  "published": "2009-07-26T16:43:53.000Z",
  "updated": "2009-12-24T03:35:20.000Z",
  "title": "Molecular transport through a bottleneck driven by external force",
  "authors": [
    "Chihiro Nakajima",
    "Hisao Hayakawa"
  ],
  "comment": "14 pages, 12 figures",
  "journal": "Prog. Theor. Phys. 122 (2009), 1377-1390",
  "doi": "10.1143/PTP.122.1377",
  "categories": [
    "cond-mat.stat-mech",
    "cond-mat.soft"
  ],
  "abstract": "The transport phenomena of Lennard-Jones molecules through a structural bottleneck driven by an external force are investigated by molecular dynamics simulations. We observe two distinct molecular flow regimes distinguished by a critical external force $F_{c}$ and find scaling behaviors between external forces and flow rates. Below the threshold $F_{c}$, molecules are essentially stuck in the bottleneck due to the attractive interaction between the molecules, while above $F_{c}$, molecules can smoothly move in the pipe. A critical flow rate $q_{c}$ corresponding to $F_{c}$ satisfies a simple relationship with angles and the value of $q_{c}$ can be estimated by a simple argument. We further clarify the role of the temperature dependence in the molecular flows through the bottleneck.",
  "revisions": [
    {
      "version": "v3",
      "updated": "2009-12-24T03:35:20.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "external force",
      "molecular transport",
      "flow rate",
      "molecular dynamics simulations",
      "distinct molecular flow regimes"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "journal": "Progress of Theoretical Physics",
      "year": 2009,
      "month": "Dec",
      "volume": 122,
      "number": 6,
      "pages": 1377
    },
    "note": {
      "typesetting": "TeX",
      "pages": 14,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2009PThPh.122.1377N"
    }
  }
}