The boundary effect is when, due to wall friction, the flowing air slows
down along the port wall.
This boundary layer then increases in thickness and effectively causes
flow to decrease.
A rougher surface texture produces "micro-turbulence" which breaks up the
boundary layer thickness.
We head porters call this, energizing the boundary layer. This also helps
to keep the fuel in suspension.
The analogy I use is a slow moving river where there is very little flow
along the banks.
Ron
On Sat, 18 Dec 2004 16:09:52 -0500 Doug Mathews <mathews@uga.edu> writes:
> Ok guys,
>
> I know I can web research it, but can someone explain in reasonably
> simple
> terms exactly what is "boundary effect"? Thanks
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