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Added by Arxiv Bot | Added: 2026-03-02 18:00 | Views: 1 | Source: arXiv Dataset IDs (Model)

Using Drag to Hover

Authors	Z. Jane Wang
Categories	physics.flu-dyn physics.gen-ph
ArXiv ID	physics/0304069
URL	https://arxiv.org/abs/physics/0304069

Abstract

Unlike a helicopter, an insect can, in theory, use both lift and drag to stay aloft. Here we show that a dragonfly uses mostly drag to hover by employing asymmetric up and down strokes. Computations of a family of strokes further show that using drag can be as efficient as using lift at the low Reynolds number regime appropriate for insects.

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    "abstract": "Unlike a helicopter, an insect can, in theory, use both lift and drag to stay\naloft. Here we show that a dragonfly uses mostly drag to hover by employing\nasymmetric up and down strokes. Computations of a family of strokes further\nshow that using drag can be as efficient as using lift at the low Reynolds\nnumber regime appropriate for insects.",
    "arxiv_id": "physics/0304069",
    "authors": [
      "Z. Jane Wang"
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      "physics.flu-dyn",
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    "title": "Using Drag to Hover",
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