Prev: Be ready to be killed, or take action to stop the global suicide. Scandal at CERN.
Next: Be ready to be killed, or take action to stop the global suicide. Scandal at CERN.
From: jimp on 5 Mar 2010 11:51
In sci.physics Bret Cahill <BretCahill(a)peoplepc.com> wrote:
> Reynolds Number indicates if the flow is laminar.
>
> In turbulent flow the fibers might be tossed end over end but not in
> laminar flow.
>
>
> Bret Cahill

An object like a fiber, i.e. a long, thin object, doesn't have "A" Reynolds
number.

The Reynolds number will depend on the orientation of the fiber relative
to the air flow.

The end on Reynolds number will be very different than the broadside
Reynolds number, which will be different than Reynolds number at 45 degrees
off the end axis, ad infinitum.

The Reynolds number where the flow becomes laminar is also dependant on the
flow geometry and not a "magic number" guaranteeing laminar flow.


--
Jim Pennino

Remove .spam.sux to reply.
 | 
Pages: 1
Prev: Be ready to be killed, or take action to stop the global suicide. Scandal at CERN.
Next: Be ready to be killed, or take action to stop the global suicide. Scandal at CERN.