{
  "id": "1010.3741",
  "version": "v1",
  "published": "2010-10-18T21:33:18.000Z",
  "updated": "2010-10-18T21:33:18.000Z",
  "title": "Falling Particles in Fluids at Intermediate Reynolds Numbers",
  "authors": [
    "Acmae El Yacoubi",
    "Sheng Xu",
    "Z. Jane Wang"
  ],
  "comment": "short film < 3min",
  "categories": [
    "physics.flu-dyn",
    "physics.comp-ph"
  ],
  "abstract": "In this video, we present the dynamics of an array of falling particles at intermediate Reynolds numbers. The film shows the vorticity plots of 3, 4, 7, 16 falling particles at $Re = 200$. We highlight the effect of parity on the falling configuration of the array. In steady state, an initially uniformly spaced array forms a convex shape when $n=3$, i.e the middle particle leads, but forms a concave shape when $n = 4$. For larger odd numbers of particles, the final state consists of a mixture of concave and convex shapes. For larger even numbers of particles, the steady state remains a concave shape. Below a threshold of initial particle spacing, particles cluster in groups of 2 to 3.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2010-10-18T21:33:18.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "intermediate reynolds numbers",
      "falling particles",
      "uniformly spaced array forms",
      "convex shape",
      "concave shape"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2010arXiv1010.3741E"
    }
  }
}