Thermal Attenuation Structure For Detonation Combustion System

A heat engine, comprising:

• an inlet section through which a flow of oxidizer enters the heat engine;
• an expansion section through which a flow of combustion products exits the heat engine;
• and
• a rotating detonation combustion system disposed in serial arrangement between the inlet section and the expansion section, the RDC system comprising:
• a detonation chamber wall extended along a longitudinal direction, wherein the detonation chamber wall defines a detonation chamber radially inward thereof;
• a fuel-oxidizer nozzle defining a first convergent-divergent nozzle disposed upstream of the detonation chamber;
• and
• a gas nozzle defining a second convergent-divergent nozzle extended through the detonation chamber wall at least partially along the longitudinal direction, wherein the gas nozzle provides a flow of gas into the detonation chamber at least partially co-directional to the detonation chamber wall.