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====== Injection systems ======
Injection systems are crucial for many technical processes.
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In modern [[Internal_combustion_engines#Direct_injection|internal combustion engines]] are elementary part of the combustion system.
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===== Nozzle flow =====

The simulation of the nozzle flow is used to analyse the atomisation behaviour
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of the present injector in its vicinity.
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The influence of the motion of the injector needle can also be investigated.

{{wiki:injection.jpg?600&nolink|Nozzle flow }}
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===== Spray =====

Spray simulations show the interaction of the dispersed phase with the surrounding atmosphere.
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The analysis helps to understand large scale motion of the liquid fuel.

{{wiki:parcels_online.gif?&nolink|Spray/wall interaction}}
{{wiki:wallfilm_online.gif?&nolink|Wall film}}