So I was reading about vortex shedding, and got to know that it causes the building to resonate. Is there any way to use this resonance to generate electricity (maybe use quartz?) I am trying to make this model for a science fair. I am in grade 9 so it would help if the answers are not too complicated. Thanks.

  • $\begingroup$ This movie might be interesting for you: fuckyeahfluiddynamics.tumblr.com/post/74947730170/… $\endgroup$ – Bernhard Feb 3 '14 at 15:59
  • $\begingroup$ @Bernhard , the link you provided just describes vortex shedding, but still, thanks. It was quite informative. :) $\endgroup$ – user124740 Feb 3 '14 at 16:43
  • $\begingroup$ I was talking about the movie, because it clearly demonstrates this resonance in the simple flow geometry :) $\endgroup$ – Bernhard Feb 3 '14 at 21:28

Piezoelectricity requires a dielectric (electrically insulating body) or things internally short. High voltage but near zero current obtain. When the body relaxes, things reverse. One solution is an AC piezo-generator stack that is huge surface and minimum volume, driving a step down transformer or some such. Consider piezoelecric sneaker lights and anti-static guns for vinyl records (ask your grandparents).

Infiltrate and cover your building with taut PVDF tweeter sheet, then borrow or diddle the circuitry.
"Self-damping skyscrapers as energy generators"

(Making a Shroud of Turin only requires heavy white cloth, some plaster, and a kitchen oven. It will get you publicity if not notoriety.)

  • $\begingroup$ Will it work if I use cardboard for the building and cover it with PVDF? $\endgroup$ – user124740 Feb 4 '14 at 5:13
  • $\begingroup$ Do your chair parade. You need a stack of taut polled elements. piezo.com/tech2intropiezotrans.html Six months in the lab will save you an afternoon in the library. $\endgroup$ – Uncle Al Apr 4 '14 at 22:24

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