Kevin,

where were the VG's located, what shape? I have looked at a lot of

submerged

inlet stuff with all kinds of different approaches using VG's etc

in NACA

papers. They all seem to say that when you are near the rear of the

aircraft

in a thick boundary layer the submerged inlet is inferior to the

snorkel

inlet. Maybe this person hit the magic location and is introducing

energized

air into the boundary layer and solving this problem. I would

certainly be

interested, because I would prefer to use a submerged if I thought

the

pressure recovery was as good.

Monty

I don't remember.  You can find out by searching the Cozy Archives
here:
Go to:

   http://www.maddyhome.com/servlets/cozysrch

This is also a link from the:

   http://cozy.canard.com/mail_list/

web page.

Search for NACA and VG vor Vortex Generator in the last 3 months and I
am sure you will find it.

Kevin Russert Walsh
Sr. Process & Equipment Development Engineer

The AirCraft Rotary Engine NewsLetter.              Powered by Linux.
ACRE NL web site.
http://home.earthlink.net/~rotaryeng/            http://www.linux.org