air entrainment


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air entrainment

the movement of room air into the chamber of a jet nebulizer used to treat respiratory diseases. Air entrainment increases the rate of nebulization and the amount of liquid administered per unit of time.
References in periodicals archive ?
Multi-zone models depend on empirical correlations to describe spray penetration and air entrainment into fuel zones over time.
This was explained by suggesting that the cylindrical nozzle generated a higher exit velocity, which would increase air entrainment and thus the spreading angle.
5,6) In both cases, single-layer and bilayer coatings, air entrainment from the upstream direction occurred as the dominating coating limit, which is strongly related to the coating bead stability.
Ho and Riddete [3] applied CFD model to evaluate the hydraulic performance of different spillways for increased flood discharges and suggested future work for cavitation, air entrainment, scour modelling, air demand and dynamic interaction.
In the present CV model, air entrainment occurs on top of the liquid, and the moving water column does not lose its mass at a constant rate due to gravity and shear effects at pipe walls.
Water flow, falling into a water reservoir's surface, deforms the water surface and creates a turbulent flow that causes air entrainment into the deeper layers of water.
The novel method presented here allows for small volume, high throughput analysis of the effect of foam control additives and other surfactants on the ability of a coating formulation to resist air entrainment.
The ventilator functions as either a flow generator or pressure generator in inspiration depending on whether air entrainment is in use or not.
Clarke (8) examined the effects of surface roughness on air entrainment in curtain coating.
FLOW-3D Cast can tackle virtually all casting processes and contains models specifically designed for detecting design problems, including tracking of surface oxides, air entrainment, shrinkage porosity, micro-porosity, and cavitation erosion.