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strohl
2003 Nov 19
0
OT Sorta: Strouhal Numbers, Unladen Swallows and Monthy Python....
Greetings all,
Every now and then, as we engage in serious discourse, it seems
appropriate to throw something into the mix that might digress and
brighten the day.
So, what is a Strouhal Number?
"For an animal or insect in flight, the Strouhal number is determined by
the frequency (f) of wing strokes, multiplied by the amplitude (A) of
the wing, divided by the animal?s forward speed (U) through the air.
The Strouhal number is equal to f A/U"
Jonathan Corum (a graphic...