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Elementary,Middle School,High School,College,University,PHD
| Teaching Since: | May 2017 |
| Last Sign in: | 398 Weeks Ago, 2 Days Ago |
| Questions Answered: | 66690 |
| Tutorials Posted: | 66688 |
MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
Wind blowing past a flag causes it to “flutter in the breeze.” The frequency of this fluttering, ω, is assumed to be a function of the wind speed, V, the air density, ρ, the acceleration of gravity, g, the length of the flag,ℓ, and the “area density,” ρr (with dimensions of ML-2) of the flag material. It is desired to predict the flutter frequency of a large
wind. To do this a model flag with ℓ = 4 ft is to be tested in a wind tunnel. (a) Determine the required area density of the model flag material if the large flag has ρA = 0.006 slugs/ft2 (b) What wind tunnel velocity is required for testing the model? (c) If the model flag flutters at 6 Hz, predict the frequency for the large flag.
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