Recently, there has been a major innovation on the overseas Internet: the Chinese scientific research team is trying to revolutionize the integration of rotary and tilt detonation technology in the engine, and the fifth-generation aero engine has made a qualitative breakthrough, which will be used in the sixth-generation aircraft.
The so-called pulse detonation engine is a kind of rocket engine, what is detonation, detonation is the mixing of fuel and air in the rocket combustion chamber, and the frequency becomes pulse. The nomenclature here is not enough, it should be used at high frequency to match the speed of Mach 30.
Mach 30 is equal to a distance of 10,299 meters per second, how many times is it generated at this speed ** to make the rocket's speed not decay? If 1 meter **1 time, then it must be guaranteed within 1 second**10299 times. 10.299 milliseconds must be produced once at 10Within 299 milliseconds, the fuel must be mixed with air after ignition**
If this can be done, it is called super-ignition, that is, there is a strong wind of 10,299 meters per second in the combustion chamber, and ignition is a problem. The temperature at which a rocket flying at this speed creates a thermal barrier is calculated in thousands, and the temperature of the air entering the rocket's combustion chamber will also be high. The expansion of the gas increases as the temperature rises, and the overheating of the air entering the rocket will reduce the efficiency of the rocket, and the air entering the rocket at this speed is called the ramming force.
Detonation is divided into rotary detonation and oblique detonation, the rotary detonation engine is suitable for the aircraft to start from zero speed, while the oblique detonation ramjet engine is more suitable for the flight speed of Mach 6 and Mach 17.
Chinese research authorities are working on two futuristic engines at the same time, "revolutionary" air engines that can accelerate aircraft from zero to 16 times the speed of sound. Flying from China to the United States is 2 hours. This also means that if we have a hypersonic bomber with such a power plant, it is not a dream to hit the world in 2 hours.