The phrase "air phase" is correct and usable in written English.
It can be used in contexts related to science, engineering, or environmental studies, particularly when discussing different states of matter or phases in a process.
Example: "During the experiment, we observed the transition from the liquid phase to the air phase as the temperature increased."
Alternatives: "gas phase" or "aerial phase".
The results show that the US EPA flux chamber presents a fairly well mixed air phase.
Then, the Iraqi army was exposed and vulnerable in the desert and, after the air phase of the war, could offer no effective resistance.
Movement of the particles will be studied by dividing the physical problem into two parts: solid phase and air phase.
Interaction between the air phase and the solid phase will be described by the particle-source-in-cell method.
The prevention of water leakage from the water phase to the air phase was also confirmed for water pressure up to 0.8 MPa.
Its simulated air phase velocity profiles are validated against the measurements of Posner, Buchanan and Dunn-Rankin, Energy and Buildings, 2003.
The superficial Reynolds number of water and air phases has been varied in the range of ReL = 50,130 87,730, and ReG = 3 18.5, respectively.
Colloid mass transfer mechanisms among aqueous, solid matrix, and air phases, and contaminant mass transfer between aqueous and colloid phases are represented by kinetic expressions.
An appropriate combination of bubble size, closure interphase force model, and coefficient of force acting on the interface between the water and air phases is important for predicting the performance of the multiphase flow.
Their volumetric behavior is the key information for the geotechnical design but is quite complicated to describe or predict due to the coupled hydro-mechanical interplay among the solid, water and air phases.
Separation by flotation is a complex three-phase process (liquid, solid and air phases) with many sub-processes and interactions.
