A spray nozzle is a device to disperse a liquid into a cloud of fine droplets. Spray nozzles are used to achieve two primary functions: increase liquid surface area to enhance evaporation, or distribute a liquid over an area. Many processes require spray systems to apply or use the liquid efficiently.
Spray studies are used to characterize:
- Turbulence and transient events inside the spray nozzle head
- Cone angle, penetration length, symmetry, mixing phenomena and air flow velocity around the liquid sheet
- Droplet size/velocity correlation, droplet sphericity, droplet shape orientation, volume flux etc. in the break-up region, where the liquid sheet is transformed into droplets
- Time/size correlation to gain knowledge of mass transfer phenomena
- Droplet/wall interaction (impinging & ejected)
- Evaporation phenomena
Application Notes
Spray Dynamics of Aeroengine Fuel Injectors
Investigation of the spray dynamics of fuel injectors for aero engines under simulated pressure conditions
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The role of the fuel injection systems in direct injected gasoline engines is to achieve a suitable fuel vapor distribution, homogeneous or with some degree of stratification, while avoiding[…]
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