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Chapter 1043: Benchmarking F-22

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    Micro-precision is not only tiny but also precise. It is equivalent to making a dojo inside a snail shell. It can accommodate a huge amount of things in a square inch.

    The manufacturing of chip circuits is a typical micro-precision process, and it is also a nano-level super micro-precision that is invisible to the naked eye.

    In the field of aviation manufacturing, although it has not yet reached the level of nano-level metamorphosis of chips, there are still many parts produced that have reached a level of micro-precision, such as the air film cooling holes of turbine blades, and the front and rear of palm-sized blades.  Finally, nearly a hundred small holes will be drilled.

    Although the size of these small holes is visible to the naked eye, being able to drill these holes accurately, stably, and in one go requires extremely precise micro-manipulation, so this type of process hole is also classified in the micro-precision category.

    At this moment, the flame tube in the hands of the middle-aged aviation expert from Algeria is covered with small process holes like the film cooling holes of turbine blades, like tiny honeycombs, and like a marching array, dense and orderly.  are distributed around the flame tube, giving people a unique industrial aesthetic.

    But the middle-aged expert holding the flame tube had no intention of appreciating this unique beauty. Instead, he stared at these small holes. There was no way that these holes were made too finely. Although there was no metallographic analyzer or electron microscope,  The middle-aged experts judged based on many years of experience that the equipment for making these holes is definitely not simple.

    "I wonder how effective the hole array using this micro-precision process is?"

    While the middle-aged expert and other people around were looking at the craft holes on the flame tube and marveling at the distribution and beauty of these holes, Aziz, who had been silent for the whole time, suddenly made a suggestion to Ascendas Group.  The key question.

    Hearing this, Abdullah and Mahmoud looked at Zhuang Jianye in unison, but Zhuang Jianye smiled slightly and ordered to several laboratory technicians in white coats not far away: "Put the same model on the test bench  The combustion chamber will be opened to allow experts from both countries to provide guidance."

    Several technicians responded and immediately walked to the operating table. After a little preparation, they turned on the switch. With a whirring sound, on the experimental table not far away from everyone, a machine with the same size as the middle-aged expert was placed.  The interior of the combustion chamber of the identical product was immediately enveloped in blazing flames.

    At the same time, relevant pictures were immediately displayed on two rear-projection color TVs on the side. One was an infrared imaging picture of the flame tube in the combustion chamber and a computer-generated internal gas flow dynamic diagram based on the combustion situation and airflow distribution; the other was  It is the external monitoring of the test bench and the temperature changes in the center of the combustion chamber, the inner wall of the flame tube and the outside.

    At first, Aziz and others didn¡¯t think much of it, but when the core temperature of the combustion chamber reached 1832 degrees Celsius, Aziz¡¯s old face began to become uneasy.

    You must know that this core temperature has reached the maximum temperature of the flame tube of the M88 small bypass ratio turbofan engine used by the French Rafale fighter jet.

    This temperature has only been reached once in the European Aeronautics and Space Administration laboratory, because one such extreme temperature test is enough. After all, the combustion chamber is not just any firewood. We know that the combustion chamber of m88 can have an extreme temperature of 1832 degrees Celsius.  Just value it.

    After all, in actual use, the temperature of the flame tube of the m88 can only be maintained at a maximum of 1587 degrees Celsius. Any higher will cause problems.

    But now, the core temperature of the combustion chamber of Ascendas Group has reached 1832 degrees Celsius, the extreme value of the French M88 engine combustion chamber, and it has climbed steadily by one degree Celsius without any pressure.

    This was already unsettling, but Aziz was even more surprised when he looked at the dynamic diagram of gas flow produced by a computer on the other screen.

    Most of the red heat flow in the middle is wrapped by a shallow layer of light blue airflow, rotating rapidly in the flame tube like a tornado. As the saying goes, the wind borrows the fire, and the fire borrows the wind. This is true for forest fires in the outside world, and the fire inside the flame tube.  The same is true for combustion heat flow.

    In addition to the oxygen brought by the compressed air from the compressor, the cooling air mold also provides combustion-supporting oxygen. Coupled with the internal rotation, it not only allows the fuel and oxygen to be fully mixed and burned, but also completely isolates the combustion from the inner wall of the flame tube.  , so that the temperature of the flame tube always stays at a constant value.

    From the results that the detection temperature of the inner wall is 1189 degrees Celsius, the outer temperature is only 800 degrees Celsius, and both sets of numbers are very constant plus or minus not exceeding 3 degrees Celsius, it can be seen that the efficiency of the internal rotating air film of the flame tube is quite high.

    Yes, it is really quite high, because the core temperature of the combustion chamber has reached 2057 degrees Celsius at this moment.

    "Thisthisthis"

    At this time, Aziz was completely shocked. He had not come up with this for a long time. It is no wonder that the prince of the United Arab Emirates, who has been in the European aviation technology industry for most of his life, would be like this. It is really this value.It was so amazing, so amazing that in his life, he had only heard American colleagues brag about it at an academic exchange meeting, but he had never seen a combustion chamber that could truly withstand temperatures above 2,000 degrees Celsius.

    Because of this, when Aziz witnessed this miracle with his own eyes, he felt as if he was living in a dream, his consciousness completely blurred, and he felt that all of this was not real.

    Where is this place?  Is it China?  Have the Chinese already obtained the key components of the next generation fighter jet?

    You must know that the Europeans are still dawdling in this field; the Russians are still scraping together money in this area; but the Chinese have already achieved results?

    "Dear gentlemen, this is the wc-6 'honeycomb combustion chamber' developed by our Ascendas Group specifically for the hx-25-17 third-generation core aircraft. The internal flame tube adopts our original air film cooling hole array by the Ascendas Group.  As shown on the screen, the entire combustion process is violent but smooth, and the key rotating air film can completely protect the inner wall of the flame tube from high temperature erosion.

    There are currently two companies in the world with independent R&D and production capabilities for this technology. One is Pratt & Whitney of the United States, which uses this technology in the combustion chamber of the F-119 high-thrust turbofan engine they produce for the F-22.  technology; the other is from our Ascendas Group, and the wd-80s high-thrust turbofan engine we equip for the next-generation combat aircraft Zhenlong Max will also be equipped with this technology"

    Just when Aziz was in a trance, Zhuang Jianye's unhurried voice came faintly, which finally brought Aziz back to his senses. Zhuang Jianye framed the topic on the True Dragon Max next-generation fighter and WD-80s.  On the engine, there was nothing about the sale of equipment or the transfer of production lines. After all, Zarif¡¯s news was given secretly. Zhuang Jianye could not reveal Abdullah and Mahmoud¡¯s little thoughts, so he could only fight for the next generation.  Aircraft cooperation is unfolding, and what is the core of the next generation of combat aircraft?

    Of course it is an aerospace engine, so Zhuang Jianye was unambiguous. He took out the key technological achievements of the next generation engine and directly compared it with the F-22's F-119 engine. If this is not a king bomb, what is it?  !

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