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Re: Singing pipes



On Wed, 19 Mar 1997, George Spagna wrote:

BTW a good lab exercise is to obtain a power spectrum of the pipe - when
we do it the dominant (loudest) frequency is not the fundamental but the
first overtone. Anyone with insights why that mode should be easier to excite?

I have not done this experimentally, but my guess is that it depends upon
the length of pipe. For some pipes the turbulence around the wire mesh
will cause its most efficient oscilations at the fundamental and for
others it will be at an overtone. Does the size of the holes in the mesh
effect which frequency is most efficiently expressed?

Richard Bowman
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Dr. Richard L. Bowman
Chair, Dept. of Physics
(and Dir. of Academic Computing) e-mail: rbowman@bridgewater.edu
Bridgewater College phone: 540-828-5441
Bridgewater, VA 22812 FAX: 540-828-5479
"http://www.bridgewater.edu/departments/physics/bowman/bowman.html";
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