{
  "annotation_id": "80410c22-471e-48d5-9af3-0df034ab82e6",
  "date_created": "2026-03-02T18:00:53.851000Z",
  "date_modified": "2026-03-02T18:00:53.851000Z",
  "file_hash": "e1aa432dd1d3df52edcbf583f2e7850e0d526b9a8602efc810f49b56ce9752b5",
  "private": false,
  "record": {
    "abstract": "We investigate oblique impacts of a circular disk and water surface. An\nexperiment [ Clanet, C., Hersen, F. and Bocquet, L., Nature 427, 29 (2004) ]\nrevealed that there exists a \"magic angle\" of 20 [deg.] between a disk face and\nwater surface which minimize the required speed for ricochet. We perform\n3-dimensional simulation of the water impacts using the Smoothed Particle\nHydrodynamics (SPH) and analyze the results with an ordinal differential\nequation (ODE) model. Our simulation is in good agreement with the experiment.\nThe analysis with the ODE model give us a theoretical insight for the ``magic\nangle\" of stone skipping.",
    "arxiv_id": "physics/0411125",
    "authors": [
      "Shin-ichiro Nagahiro",
      "Yoshinori Hayakawa"
    ],
    "categories": [
      "physics.flu-dyn"
    ],
    "doi": "10.1103/PhysRevLett.94.174501",
    "title": "A theoretical and numerical approach to \"magic angle\" of stone skipping",
    "url": "https://arxiv.org/abs/physics/0411125"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "26ab0e9d-90ed-4e3b-8983-1b81b6d259c8",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}