The phrase "air orifice" is correct and usable in written English.
It can be used in contexts related to engineering, mechanics, or anatomy, where it refers to an opening that allows air to flow in or out.
Example: "The design of the ventilation system includes an air orifice to ensure proper airflow throughout the building."
Alternatives: "air opening" or "air inlet".
A classical conical cylindrical spouted bed with a 60° conical base and an air inlet central orifice was modified to enable the switch by introducing in the vessel's center an open helicoidal conveyor screw placed above the air inlet orifice.
Steady state experiments were also performed for a single orifice air bearing and the results are compared to that obtained from theoretical studies.
There has been an external compressor feeding high-pressure air through an orifice at the bearing inlet and a network of holes in the stator forming air passages to the ambient through radial and axial gaps between the stator and top and inside bore of the support.
After inflation of the gastric cavity by air, the distal orifice of the enteral feeding tube is advanced distally into the duodenum under direct view by the fiberscope.
If all else fails, try spraying the air into any orifice you can find in your phone.
Magnetic resonance imaging (MRI) gave images of air jets from orifices in the distributor plate of a bed of poppy seeds.
The multi-orifice air jets and the rotating substrate inside the generator were used to uniformly scan a fungal culture Petri plate and to maintain uniformity of the production rate of fungal bioaerosols.
Usually there will be a cooling flow of air through the orifices in the liner (a 'bias' flow) and often they will be exposed to flow along the surface (a 'grazing' flow).
A volume-of-fluid numerical method is used to predict the dynamics of shear-thinning liquid drop formation in air from a circular orifice.
The objective of the present work is to develop and calibrate a novel, vertical solid particle injector that uses the pressure drop in the air flow across an orifice plate in a circular pipe, to naturally entrain micron-sized solid particles such as coal dust.
