Notes on a web journey

posted on: 11 September 2006

The Strouhal Number: swimming and flying

filed under: @ 19:40:07 by 7colors

Flight waveform of the Common Sheathtail Bat
Flight waveform of the Common Sheathtail Bat

“ Animals swimming or flying at cruising speed use similar ratios of stroke frequency and amplitude to forward speed. For dolphins, sharks, and bony fish moving at their preferred cruising speed, the ratio of tail frequency and amplitude to forward speed is constrained to a narrow but efficient range of values.”

The Strouhal Number in Cruising Flight

Part of style.org, a series of experimental data graphics.
(published by 13pt)

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