I think you'll agree:

1) It is useful to have a specific term for each variable that needs
to be considered.

2) It is condusing to have two or more words for the same variable.

This is true. I think that in this case we should use more basic terms
(such as "local downflow velocity") for the velocity of the downflow
near the wing.

The upper
atmosphere =is= (slightly) depleted by the flight.

And then returns to ambient pressure, at a slightly higher
termperature, after the wing has passed, right?

Wrong. It does not return to ambient pressure (regardless of
temperature) until the airplane lands.

Jose
--
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