Take a circular cylindrical container with a small, short bell-mouthed orifice
in the base center. Now fill it and remove the stopper. As John Falstaff
would have it, “Broach that bloody keg!” What happens?
The water comes out the bottom – if I can be forgiven some complex
Peter -
Delightful!
And informative.
And THIS gem...
Sometimes swirl increases the outflow, sometimes not.
I missed the implications of your Karman parable to this point. I've
observed the increase (informally, anecdotally) while Nick (and others?)
seem to have been focused on the
