Combined cycle pulse detonation turbine engine

A pulse detonation system (202) for a turbofan engine (200) including a fan assembly (212) and a turbine sub-system (230), which includes at least one turbine (232), is configured to create a temperature rise and a pressure rise within the turbofan engine and to generate thrust for the turbofan engine. The pulse detonation system includes a pulse detonation core replacement assembly (242) comprising at least one detonation chamber configured to detonate a fuel mixture. The pulse detonation core replacement assembly is positioned between the fan assembly and the turbine sub-system.