The phrase "air envelope" is correct and usable in written English.
It can be used in contexts related to aviation, meteorology, or physics, referring to a layer of air surrounding an object or area.
Example: "The aircraft's design allows it to create an efficient air envelope, reducing drag during flight."
Alternatives: "air layer" or "aerodynamic envelope".
A typical American dryer, vented to the outside, normally won't do, because it represents a huge compromise of the air envelope every time it runs.
A so-called passive home like the one the Landaus are now building is so purposefully designed and built — from its orientation toward the sun and superthick insulation to its algorithmic design and virtually unbroken air envelope — that it requires minimal heating, even in chilly New England.
Standing here, gazing up at you on your porch as the crisp early-evening air envelopes the two of us, a poignant thought has come to me.
To compensate for the shortcomings of the two types of balloons, he combined a hydrogen envelope with a small hot-air envelope below it.
Lakeland sunshine and warm summer air, without any breeze, envelopes me – it's much like climbing up through a tropical armpit.
We just sat there, letting the silence swirl through the air and envelope us.
The New Yorker, July 20, 1929 P. 9 Young man sends letter to a girl in air mail envelope from 45thStreet to 57th Street and expects arrest.
We wonder: who else-unconnected with this frightful Palestinian-Israeli feud-will receive air mail envelopes, not from the Netherlands but from Rome or Grover's Corners?
The warmest intrusion of the subtropical air masses envelopes both western and eastern flanks of the GIS south of about 75°N.
The model consists of the chilled water system model, chamber air model, building envelope model, and the control system model.
For the GSM air interface, the envelope of the coding and modulation corresponding to [15] serves as SINR-rate mapping with the additional requirement from the standard that voice users are not able to share a time slot with other users.
