Ken,
You asked me before to tell you if you had written anything stupid. Now you have. I don't think that continuing this discussion will be fruitful.
banktoturn‹s
I don't understand. What part of what I have written is wrong? Do you still disagree that spanwise flow is not necessary for downwash (net downwash, that is)? Do you disagree that the difference between 2D and 3D wings is vortex shedding?
I don't mind ending this discussion, but it seems like you just don't want to believe what I wrote. If it's wrong, at least tell me why.