Influence of nozzle Structure on Propulsion Performance of Laser Thruster

The influence of the nozzle structure on the impulse coupling coefficient in the atmospheric mode laser propulsion is studied. The laser power and pulse are numerically simulated using the dynamic grid method of FLUENT software. By studying the influence of the parabolic nozzles, straight-tube nozzles and LTCN nozzles on the impulse coupling coefficient, the impulse coupling coefficient obtained by the LTCN nozzle is the largest, which has certain guiding significance for the choice of laser propulsion nozzle.