Air-assisted atomization injection optimization system based on digital twinning

The invention discloses an air-assisted atomization injection optimization system based on digital twinning, and relates to the field of aero-engine fuel injection atomization. Comprising a spray test bench entity, a driving loop entity and a computer, the spray test bench entity comprises a constant volume bomb, a laser particle size analyzer and a gas-assisted atomizing nozzle, two driving loops of the driving loop entity are mapped into the computer through parameter modeling, and a corresponding driving loop digital twinborn model is constructed; the computer processes the SMD data of the spray particles and performs injection optimization according to the digital twinborn model of the driving loop, optimization calculation is continuously performed, time variables in the driving control process are updated, new time variables are sent to the driving loop after updating is completed, and the driving loop continuously drives the air-assisted atomizing nozzle to perform injection by using the new time varia