ramjet, dual-pulse engine, and even variable-cycle engines, the current advanced aviation technology is becoming more and more magical. Although the domestic aviation development still has a gap between the traditional field and the West, it has gradually accumulated a generation-leading advantage in the hypersonic field. And just recently an important domestic paper revealed that the domestic detonation ramjet has been completed, and the stable operation of 16 times the speed of sound can be said to be unprecedented in performance.
According to an important paper published by the "Acta Aeronautica" on November 29, it mentioned that the "standing oblique detonation ramjet" developed by the team led by Jiang Zonglin, director of the domestic high temperature gas dynamics key laboratory, has been completed. It will be the biggest innovation to the current power of hypersonic aircraft.
In fact, for hypersonic aircraft, power is the most difficult link to overcome, such as the US military’s X-51A demonstrator, and the recently very popular Australia has to continue to invest in the HIFiR scramjet engine. However, the development of these plans is not smooth, mainly due to insufficient engine combustion, and the thrust is still not enough to meet the technical requirements. It can be seen that in this regard, most of the limited original weapons in the United States are in the field of high subsonic speed. Obviously, it is inferior in the field of supersonic punch China and Russia have accumulated profound technologies, which is entirely caused by the crooked technology tree.
Although the domestic transcendent ramjet started late, it quickly completed the JY12 hypersonic simulation wind tunnel, which is the only wind tunnel in the world that can completely simulate the hypersonic environment. Only on this basis did the first aviation kerosene super-combustion engine and the Lingyun-2 proximity engine. This time, the detonation ramjet uses the "detonation effect", which is the ultimate combustion method under hypersonic speed. It can completely release energy in millimeter-level space and microsecond-level time, and the efficiency exceeds 75%. . Compared with the traditional ram-combustion method, the efficiency of the detonation ramjet is doubled, can exert a huge energy effect in a short time, and can effectively reduce the size and weight of the engine, which is also an important basis for the technological leap of domestic hypersonic aircraft.
It is said that after the engine is turned on, the opening of the combustion chamber shines like a starship in a science fiction blockbuster such as Star Wars, and a very dazzling light will appear at the moment of the detonation wave. This is because the high-speed air flow hits the intake port and is generated when it comes into contact with the hydrogen fuel in the combustion chamber. It is estimated that the theoretical speed of the engine can reach 16 times the speed of sound, and it has reached 5 times the speed of sound, while the current domestic wind tunnel can only simulate 9 times the hypersonic environment. After the establishment of the future Mach 25 wind tunnel, the working conditions of this advanced engine can be better studied, and the actual efficiency can be further promoted to the theoretical value.
This technology currently directly benefits from the next generation of hypersonic strike weapons, which can further increase the speed and reduce the size, making it difficult for the opponent to intercept, and it is more suitable for airborne, shipborne and underwater platforms. At the same time, the smaller engine size can also make long-range hypersonic aircraft possible, further enhancing its strategic combat capabilities. Of course, in addition to weaponization, the critical space engine can also make commercial transatmospheric aircraft easier to achieve in a low-cost manner, which has a historic contribution to mankind's rapid entry into the space age.
Generally speaking, in addition to turbofans, turbojets and traditional rocket engines, we have reached a higher level for the disruptive new quality technology of detonation ramjet engines. For example, its theoretical level of 16 times the speed of sound has already surpassed the United States, and its technological accumulation will further improve the suppression of the generation difference. This will undoubtedly give us more say in the future new technologies, and at the same time, hypersonic strike weapons will also give us an additional weapon for protecting peace in the future.
Of course, this is also inseparable from the efforts of countless military workers. Without their day and night tackling and experimentation, many things are on paper. And this is not a certain aspect of the credit. The engine cannot be separated from the wind tunnel, and the wind tunnel cannot be separated from the new materials. It is the joint efforts of the workers of the entire military industry system that will enable us to be more proud in the future. Own voice.
