{
  "id": "1810.11170",
  "version": "v1",
  "published": "2018-10-26T03:13:08.000Z",
  "updated": "2018-10-26T03:13:08.000Z",
  "title": "Scaling Laws for the Propulsive Performance of Three-Dimensional Pitching Propulsors",
  "authors": [
    "Fatma Ayancik",
    "Qiang Zhong",
    "Daniel B. Quinn",
    "Aaron Brandes",
    "Hilary Bart-Smith",
    "Keith W. Moored"
  ],
  "categories": [
    "physics.flu-dyn"
  ],
  "abstract": "Scaling laws for the thrust production and energetics of self-propelled or fixed-velocity three-dimensional rigid propulsors undergoing pitching motions are presented. The scaling relations extend the two-dimensional scaling laws presented in Moored & Quinn (2018) by accounting for the added mass of a finite-span propulsor, the downwash/upwash effects from the trailing vortex system of a propulsor, and the elliptical topology of shedding trailing-edge vortices. The novel three-dimensional scaling laws are validated with self-propelled inviscid simulations and fixed-velocity experiments over a range of reduced frequencies, Strouhal numbers and aspect ratios relevant to bio-inspired propulsion. The scaling laws elucidate the dominant flow physics behind the thrust production and energetics of pitching bio-propulsors, and they provide guidance for the design of bio-inspired propulsive systems.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2018-10-26T03:13:08.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "scaling laws",
      "three-dimensional pitching propulsors",
      "propulsive performance",
      "propulsors undergoing pitching motions",
      "three-dimensional rigid propulsors undergoing"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}