"...trip fences to move boundary layer above the
body."
It took four days for this message to move through
cyberspace (so much for light speed. More like lite
speed) so what I have said here is old news. One
correction however; I meant to say laminar flow
instead of boundary layer.
John
--- John Goodman <ggl205@yahoo.com> wrote:
> "I have read that the longer the distance the air
> travels along the body, the thicker the boundary
> layer
> gets and the more unstable it becomes."
>
> If you can get a hold of the SAE paper done on The
> Goldenrod
> streamliner, wind tunnel tests on that car used trip
> fences to move
> boundary layer above the body. It may take some fine
> reading but you
> will be amazed at the vertical measurement of the
> trip fences tested
> in this study (I won't tell because it will ruin the
> surprised look on
> your face when you find out). Modern glider aircraft
> now use wing
> surface patterning to accomplish this but trip
> fences are easy and
> cheap to use. The only problem is how high is too
> high.
>
> John
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