Research on gas dynamic resonance igniters of multi-thruster

To realize the multi-thruster ignition, two methods based on the gas dynamic resonance heating technology were presented. Based on numerous air resonance heating experiments and analytical work, two kinds of igniters (multi-tube igniter and small igniter) were developed and tested successfully. The system structure, experimental parameters and results were presented. The former can be fixed to smaller thrusters easily, and the latter can provide larger flame gas flux and ignite normal thrusters. Both were able to perform repetitious multi-thruster ignition simultaneously and reliably in one second at sea level.