Chapter 471: The Battle of the Route
Meanwhile, across the ocean, the Boston metro area of Massachusetts.
In a large lab at the Massachusetts Institute of Technology, emerging professor Matthews Brad and several right-hand men are huddled around a single-stage turbotesting machine, ready to launch a new round of experiments.
The new machine, which they bought directly from their colleagues at Oxford, is an MT1 test rig that allows the entire combustion chamber-turbine structure to be tested in its entirety, rather than just a single blade.
In fact, this kind of international cooperation is precisely the greatest advantage of Western countries in the field of industry.
As the leader of the entire group, the United States does not need to own the key technologies in each field, as long as it can complete the international division of labor and resource integration, it can naturally obtain the best quality resources.
Of course, this comes at the cost of a gradual disconnect between technology development and engineering practice.
After all, technical data can be saved, but engineering experience cannot.
When experienced engineers retire, if they don't get a new generation of successors in advance, the ability to do so will quickly disappear.
Of course, in the current 90s, Americans who have just won the Cold War do not think that this is such a big problem.
"Regina, it's almost time to prepare, go set the parameters of the experiment, Bullock, bring the sample for the test, and get ready to start the test."
Brad shouted to the two graduate students standing on the other side of the device.
Regina held out her arm and gestured to him OK.
Bullock took several large turbine discs from a box and, with the help of two other people, placed the number 1 in the test position.
Unlike the one Chang Haonan ordered from the 410, this equipment uses an electric heating method that is easier to control and safer, rather than atomized jet fuel combustion to generate hot airflow, so there is no need to empty all personnel in the venue during the test.
Just stay away from a safe distance.
After a few minutes, three green lights on the console lit up, indicating that the entire experimental process that had just been set up was ready to begin.
Although it takes some time for the unit itself to heat up, this can be done fully automatically once it is set.
And the data is also read and recorded online in real time.
The MIT laboratory, in terms of these hardware, is definitely a first-class level, compared to the Huaxia side, it is like two worlds.
Not counting other auxiliary equipment, the MT1 test platform in the middle of the laboratory alone is worth nearly a million dollars.
It doesn't matter, though.
As a research group sponsored by General Electric, Professor Bled is not short of this "little money".
After losing out to its main rival Pratt & Whitney in two fourth-generation engine options, GM quickly set its sights on fifth-generation engines for its next-generation Air Dominance Fighter (NGAD).
The research is part of a GE-sponsored project.
On the fourth-generation aero engine, whether it is Pratt & Whitney or GM, it can still fly through material science and rely on the traditional second-generation active cooling technology.
But this is already the limit.
The future fifth-generation engine, in any case, will require completely new cooling technology.
Therefore, money is not the point, the key is that he needs to produce results as soon as possible.
"Regina, remember to pay attention to the migration of the 'hot spot' at the entrance of the turbine, especially the difference between the No. 2 experimental group and the No. 1 control group, you don't have to wait for the whole experiment to be completed, as long as the results are out, send them to my office first."
Professor Bled wasn't a quick man, but the corporate representative sent by General Motors was standing nearby, and it was not good to continue to take his time.
This is the same as social animals, so that once the boss sees you touching fish, he will wonder if you have been fishing.
Now that Party A's father is here, he has to show a little sense of urgency.
"Professor Bled, we saw that your research group published a paper last month called "Research on the Flow and Heat Transfer Characteristics of Gas Film Cooling Structures".
General Motors representative Andrew Goldstein asked, looking at the roaring experimental equipment in front of him.
Although he was in charge of project management, he also studied thermodynamics in his early years, so he was not ignorant of technical issues.
"How could it be ......"
Brad glanced at Goldstein next to him.
He hid the disdain in his eyes very well:
"The superposition of cooling jets on small and micro gas turbines has a good effect, but when scaled up to this size, the superposition effect is simply not up to the level mentioned in the paper, and it is impossible to solve the problem of heat accumulation caused by the uneven working fluid parameters of the turbine inlet."
"So that article ......"
Goldstein came out to work as an undergraduate, and he didn't know much about these things in research.
"Some research results are just scraps, and my students always need to graduate."
Brad replied nonchalantly.
Perhaps feeling that his attitude towards the representative sent by the gold lord was a little blunt, he continued to explain:
"The turbine structure that is now being tested is laminate cooling using a combination of air film cooling and impact cooling, and we have already predicted the heat build-up through numerical calculations, which is the migration law of the 'hot spot' in the entire turbine channel."
"In this way, it is possible to use multi-slit jets for impact cooling in a targeted manner along its migration path to enhance the cooling effect, while air film cooling can continue to be used in other locations to reduce unnecessary pressure loss, and the final result is ......"
At this point, Brad paused.
He had actually calculated an approximate number from the computer, but the actual test results came out immediately, and the latter was obviously more convincing.
"We'll have to wait for the test results to come out, and in short, it will be a revolutionary step forward compared to traditional methods."
After Brad finished speaking, he proudly adjusted the lab coat on his body and put his hands in his pockets.
"In the past, due to the presence of hot spots, the cooling of the entire turbine section had to be redundantly designed according to the temperature there, which was a great waste of cooling power."
"My new technology solves this problem by maximizing the cooling power where it needs to be used."
The explanation was so down-to-earth that even Goldstein could understand it.
"Professor Brad, if someone reads the paper you posted, will they go in the wrong direction?"
As they spoke, the two walked towards the office next to them.
"Possibly."
Brad stopped at the door of his office and turned to look back at Goldstein:
"But wouldn't it be better if that way?"
(End of chapter)