TC - as RVDT asks, what is the mechanism by which the 'ram effect' increases pressure under the wing when there is no choke point, just a slightly convergent duct?
I don't think you can ram air into a tube with 2 open ends and hope to create dynamic pressure..
If your reading on WIGs has been on bernoulli based articles then I am sure it does talk about increase of pressure but said theory would appear to be incorrect.
Decrease of downwash - Yes
Increase of pressure and ram effect - No
Apparently the earth is no longer flat!!!!
