Has anyone determined drag coefficient interms of cross sectional
area for coffee filters, i.e., c1 and/or c2 in the expressions:
Fdrag = -c1*v and Fdrag = -c2*v*v?
Fowles says that for spheres c1 = 1.55e-1 times diameter and
c2 = 0.22 diameter squared.
I expect these to be incorrect for something shaped like a coffee
filter.
My students are going to be studying this soon, so I'm interested in
having some independent results to compare with.
Feel free to respond of list.
Thanks,
Bob
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Bob Muir muirrob@uncg.edu
Physics & Astronomy 336-334-3255
UNC Greensboro, NC 27402-6170
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