Is this phenomenon akin to the visible shock wave that expands from an
explosion? Seeing something like this on television, there's a very
visible rapidly expanding ring that emanates from the explosion. I was
told that it was the water vapor being "squeezed" out of the air from the
shock wave of the explosion.
Dave
On Wednesday, December 29, 1999 6:55 AM, Rand E.
[SMTP:rtomcala@xxxxxxxxxxx] wrote:
> Ken,
> I believe that I also have seen this thing that you refer to as a
> "wrinkle". It was my opinion that it only seems to visibly occur at
> higher humidity levels. And that is the humidity in the air being
> flashed to steam (visible) and following the high velocity and sweeping
> path over the top of the aircraft's wing surface. A lab demonstration
> is done in a wind tunnel with smoke. Even feeling that I knew what
> caused it, I couldn't help but watch it as long as it lasted. Something
> so sharp and well defined where you know in your gut that there is
> nothing.
> Rand E.
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