Subject: CFD's on Rutan pushers.
From: ACRE
Date: 8/5/2003, 4:23 PM

David Lednicer wrote:

I have CFD models of almost every Rutan aircraft.  I'm only missing some
very late models.  I'm swamped with work, but when I get time, I can get
you pix of stuff you want.

I agree on NACA inlets.  Right now, I'm working on a testbed aircraft
where they tried to use NACA inlets to feed a heat exchanger.  They are
getting almost no massflow.  I've suggested fixes using VGs, but their
"expert" has suggested a big inlet, so they are wasting money on this
right now.

Have you ever looked at the ECS inlet on the 727 and 737?  They use a NACA
inlet and I can't see how it could work.  On the L1011 they did this, but
elevated the inlet above the worst of the BL.

                                -Dave

Thanks David. No rush. I think I have seen these on the 1011 as my wife
Robin was a mechanic for TWA and I got a good look at the 1011.

Paul Lamar
 
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