Simulation: Great Power Technology

"Combustion chamber temperature reading!"

"At present, the combustion chamber temperature is 1100k, the combustion chamber is in stable working state, no surge is found, and the operation is good!"

"Check the combustion chamber pressure!"

"Combustion chamber pressure is below design standard with 60% load redundancy."

"Received, now carry out the regular speed change experiment and read the characteristic parameters of the compressor."

"The calibration data of air flow, boost ratio, efficiency, and surge point have been obtained, please operate the speed change."

"The speed change is complete. Combustion group, synchronously monitor the front gas and wall temperature data."

......

A series of passwords were circulated among the engineers of the test team. They were conducting comprehensive data monitoring of this engine. Everyone was nervously watching the engine on the test bench, lest an accident would destroy all their efforts.

That was the real burn.

If anything goes wrong inside the engine, especially the hot parts, even a direct explosion is not uncommon.

Fortunately, this Qilian engine has always performed well.

Ye Zhou walked up to the leader of the test group and asked while looking at the data:

"Tell me about the overall situation, and compare the ge-9x next door horizontally. How is Qilian's data performance?"

"Reporting Ye Gong, the two engines have not yet entered the load test, so there is not much difference in performance, and the data performance in all aspects is relatively stable, but compared with ge-9x, Qilian has a surge point of hot parts. Fewer, and the blades vibrate less intensely.”

Ye Zhou nodded and continued to ask:

"When is the thrust test expected to begin?"

"Start now, Ye Gong, what is the target thrust?"

"Set it to 80. After reaching 80, conduct a comprehensive inspection of the engine state, and then restart the test to see if there is a higher breakthrough on this basis."

"clear!"

Everyone who was waiting at the scene also heard Ye Zhou's words, and their faces all showed a look of surprise.

80 tons of thrust, which means that if it can be reached, Qilian has exceeded ge-9x in terms of thrust value.

Is this possible?

After all, Qilian itself is imitated according to the ge-9x drawing, and the theoretical performance data should not exceed the prototype.

However, from another perspective, the key heat-resistant components of the Qilian engine have been replaced with new materials. The high-temperature resistance of this material is more than 60% higher than that of the original titanium alloy material. That is to say, the limit situation Under the current conditions, the front gas temperature can be increased by nearly 1200k on the basis of the current 2000k.

According to the basic laws of aviation engines, for every 100k increase in the front gas temperature, the thrust can increase by about 10 tons. If no other conditions are considered, the ultimate thrust potential of this Qilian engine should be about 190 tons.

Of course, this is only an ideal model analysis, and the actual thrust is also affected by many factors such as bearing strength, blade strength and so on.

But even if these influences are added, it seems that it is not difficult to increase the thrust by 10 tons?

Everyone's eyes turned to the display screen that recorded the thrust value. There was a series of inconspicuous numbers recording the current thrust.

19.79.

The current thrust has reached nearly 20 tons, which is only 10 tons away from the thrust target of cj-1000ax.

And the Qilian engine has not even started to exert force.

Two minutes later, the thrust test officially began.

The operator gradually pushes the joystick, the fuel injection accelerates, the temperature of the combustion chamber rises suddenly, and the high-pressure air drives the bearing to pull the turbine blades, which in turn transmits the power to the fan.

The engine's air intake roared violently, and the thrust value steadily increased.

"The current thrust is 30 tons, the ge-9x thrust is 30 tons, and the data transfer has been established!"

The operator reported the situation aloud, and the data from the No. 2 test stand was transmitted to the central system, which was then projected onto another terminal display.

Of course, the current test team will not immediately compare and analyze the detailed data of the two engines. They just grab a part of the data of temperature, thrust, vibration and pressure as a reference to evaluate whether the Qilian engine is operating in a good range.

"30 tons...the goal of cj-1000ax has been broken, will their project continue?"

"I guess not. After Qilian, all high-thrust engines will be developed around the sedan sedan project... If reverse engineering is done later, military small bypass ratio engines will also refer to Qilian, I guess The project for Turbofan 18 and Turbofan 20 is also being restructured.”

"The sedan chair project is still busy after that... 35 tons."

"It's not over yet. Now the temperature and pressure data are too far from the rated extreme value, and the performance of the fan blades is also very good. Keep watching!"

While speaking, the value on the screen has slowly increased to 40 tons, but under this thrust, neither Qilian nor ge-9x showed any abnormality.

"The ge-9x is still strong. This speed range should be the most commonly used speed. The performance in all aspects is almost perfect, the surge point is also very small, and the blade tip vibration is almost negligible. This processing technology is not acceptable."

"That people have been doing it for decades. How dare you be called the world's number one if you can't do this? Isn't it the same with Qilian? Now the data is perfect."

"Qilian should be perfect... No, why do I feel that my expectations are a little too high?"

The colleague on the side smiled, and after a while, he replied:

"It's not just you, in fact, I am the same.... From the beginning of the test run, I felt that Qilian's performance may be much better than the design parameters we expected before... 50 tons already."

The thrust displayed on the screen had reached 50 tons, and Ye Zhou's heartbeat began to accelerate involuntarily.

50 tons.

This is a number that the entire Huaxia aviation industry has never broken through for decades. Today, the sedan project team and Qilian engine have broken through.

From the first generation of aero engines to the 50-ton thrust engine, the West has used it for nearly 40 years.

Although they are stepping on the shoulders of others, but it only took 7 months to achieve this level, is it not a huge success?

"Continue the afterburner. Are the data normal?"

Ye Zhou's eyes could no longer see the chaotic data on the screen, but after his question was asked, all the monitoring personnel paid attention to reporting to him.

"The temperature is normal!"

"The surge point is normal!"

"The pressure is normal! The inner structure is normal!"

"The air intake is normal!"

"The tail nozzle and wall temperature are normal!"

everything is normal.

In the working state of 50 tons of thrust, the performance of the Qilian engine cannot even be described as perfect, but it should be impeccable.

The numbers on the screen were still slowly climbing, and the rate at which the numbers climbed didn't fluctuate at all.

Push the lever, and the number rises immediately.

At a certain moment, the operator even suspected that if he pushed the operating lever directly to the end, would the thrust of the Qilian engine immediately soar smoothly and silkily to a height that no one could imagine?

"How much redundant load is there now?"

"The pressure is 50%, the temperature is 50%, but we can't test it to the limit load. It's too dangerous. We have to reserve 20% of the redundancy."

As he spoke, the operator continued to push the lever.

Thrust value increased to 60.

The thrust of ge-9x also reaches 60, but its thrust climbing speed has begun to decline compared to Qilian.

"The ge-9x is about to reach its limit, the surge point has begun to increase, and the blade tip vibration has also accelerated. The strength of the titanium alloy material is still not as good as our new material."

"Qilian has also begun to have a surge point...but the range is still controllable, and it feels similar to the performance of the ge-9x under 30 tons of thrust."

"Indeed...it should be the addition of materials, and we have no place beyond them in terms of craftsmanship."

"Looks like Ye Gong caught the main problem right. It's 70 tons. Fuck, ge-9x is going to fail."

During the conversation, all the data sent by ge-9x had been alarmed, the temperature and pressure were close to the warning line, and the vibration had reached the danger zone. Ye Zhou urgently stopped the test bench next door.

But at this time, no one cared about the test drive of the ge-9x.

Because Qilian has broken through to a whole new field.

The thrust is 76 tons, and it is still rising steadily.

The operator looked back at Ye Zhou and asked:

"Ye Gong, the target value is about to be reached, do you still need to continue the afterburner? At present, the performance of the engine... everything is normal, and I don't feel like I'm working hard."

"Continue afterburning, go up to 100 tons!"

The operator nodded, picked up the phone at hand to notify the emergency response team to prepare, and then continued to push the lever slowly but firmly.

80 tons.

Qilian crossed this line with ease, and various data began to fluctuate, but still within the green threshold.

90 tons.

The temperature and pressure redundancy are all lower than 35%, the numerical fluctuation range increases, and the working state of the engine begins to change. The first problem is the air intake. According to the 70-ton thrust design of the ge-9x, Qilian's tapered air intake The mouth is a little too narrow, and the thrust rising speed begins to decrease.

100 tons.

The monitoring data fluctuated wildly, the redundancy was reduced to 27%, the fan blades had begun to vibrate beyond the green threshold, and other accessories that were not designed globally began to seriously drag down the powerful core thermal components.

108 tons.

The data crossed the orange threshold, and the surge points were all over the engine. The operator looked at Ye Zhou, Ye Zhou pondered for a moment, and said:

"Push it to 110 tons, enter the red zone for 30 seconds, and conduct an extreme value test."

"clear!"

The operator increased the speed of pushing the lever, and within 1 minute, the thrust of the engine soared to 118 tons.

Then, under the frantically flashing warning light, the operator suddenly pulled down the emergency stop link, without his operation, the test bench immediately began to reduce the fuel supply and cut off some dangerous pipeline circuits according to the predetermined procedure, and the thrust value dropped rapidly.

After 10 minutes, the Qilian engine returned to idle speed.

"Check engine data!"

"normal!"

"normal!"

A series of responses sounded, and everyone present looked at Ye Zhou.

After the extreme value test, the performance of the engine is still normal when it returns to the idle state, then the reliability of this engine has been verified.

Ye Zhou's heartbeat suddenly missed several beats. He looked at the real-time statistics handed over by the operator in a trance and said:

"I announce that the thrust test is over. Qilian engine, safe working thrust of 90 tons, peak thrust... 121 tons."

......

Two hours later, the latest test drive data was delivered to the little red house.

A number of scientific researchers and key personnel of the Nantianmen project team have already gathered there.

They looked at the huge figure projected on the screen with different expressions on their faces.

After a long time, a man in a navy uniform stood up, waved his arm violently, and said:

"Fuck! Give this mother Ye Zhou a fucking medal!"

－－－－－－off topic－－－－－

Today, because I am resting here, there are two more chapters.

There may be fluctuations in the update next week. Fluctuation means that one day is more and one day is less, but it is still guaranteed to be 10,000 words a day.

Because, I want to modify the content of the previous chapters.

As for why, don't ask.

Anyway, when the time comes, you can revisit the revision, which is equivalent to a copy of me for free. That doesn't cost money.