"kornball" tries to dance his way out:
> I have argued that attempts to create turbulence before or
> after the part(s) should be avoided.
>
> You keep thinking in simpleton mode as if dwelling on
> turbulence or boundary layers as abstract topics, are the
> only factors. Until you accept that flow rate matters too,
> you haven't any change of seeing why you are wrong.


I have never denied that flow rate played a part in
cooling by forced draft. Indeed, the higher the flow
rate, the increased likelihood of generating turbulence.
It is your ignorant advice to minimize turbulence that
misleads readers of this newsgroup.

*TimDaniels*