A SYSTEM FOR PASSIVELY CONTROLLING PRESSURE OSCILLATIONS OF HYDRODYNAMIC ORIGIN IN A SOLID PROPELLANT THRUSTER

摘要

The invention relates to a system for passively controlling pressure oscillations of hydrodynamic origin in a solid propellant thruster (1) comprising a body (2) containing a charge of solid propellant (3) , characterized in that it comprises at least one insert (100) disposed in said thruster body transversely relative to a combustion gas flow channel (8) formed in the solid propellant charge, said insert having a single opening (101) of non-axisymmetric shape that is different from the shape of the gas flow channel to generate a three dimensional effect on the flow (E) to prevent axisymmetric turbulent modes from forming in the thruster.