according to the article, it’s the _explosion_ that rotates around the engine, not the engine « rotating detonation rocket engine» « The rotating detonations

according to the article, it’s the _explosion_ that rotates around the engine, not the engine « rotating detonation rocket engine» « The rotating detonations are continuous, Mach 5 explosions that rotate around the inside of a rocket engine » maybe like a wankel engine without the rotor?