Numerical simulation of energy law of similitude of conical nozzles for laser propulsion in repetitivelypulsed mode

In order to validate the energy law of similitude for conical nozzles under the irradiation of single laser pulse predicted by analysis, a numerical simulation belonged to the radiation gasdynamics scope is used to calculate propulsion performance parameters for a set of different nozzle sizes, and the effect of cone angle, generatrix length, the dimensionless factor introduced in theory, and incident laser energy on impulse and impulse coupling coefficient is gained, respectively. The energy law of similitude got by simulation is right, since qualitative conclusions are consistent with those derived by theoretical analysis and laboratory study in the scope that can be described by the analysis models. The results show that, impulse and impulse coupling coefficient firstly increase and the