Re: suggestions to agitate stream flow?

On Thu, 20 Nov 2003, Brian Whatcott wrote:

> Off the top, I recall that Professor Reynolds found that increasing a
> dimensionless number later called the Reynold's number to several
> thousand, caused water flowing in an open channel which was flowing
> quietly (laminar flow) to become turbulent.
> Take home message: if the stream is penned in a narrow channel, to
> flow faster, it will be agitated.
>
> Brian Whatcott    Altus OK

You are correct, Brian.  I've seen different values for the critical
Reynolds Number but 2300 appears to be the most commonly cited.  But the
water flow is only 1 mph or less and the grade is not steep at all so
increase in water velocity would be negligible by narrowing the channel.

I do appreciate your input, though.  If you like, I could email you a pic
of the site and you may get a better idea of the problem we have.

Bob