NUMERICAL MODELING OF A SUPERSONIC CW CHEMICAL HF LASER WITH A 3-JET NOZZLE ARRAY

A simultaneous calculation was made of the processes in the nozzle arr ay and in the resonator cavity of a supersonic cw chemical HF laser. A numerical investigation of the characteristics of a laser with a thre e-jet nozzle array and the nozzle-nozzle-nozzle configuration was carr ied out within the framework of the full system of the Navier-Stokes e quations. This investigation yielded dependences of the specific outpu t energy and of the lasing zone length on the coefficient of secondary dilution of the active medium with helium for different coefficients representing the excess of the secondary fuel.