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There are two most important test items in these ongoing verification tests, namely the water swallowing test.

Water swallowing verification test run, as the name implies, is to allow the engine to inhale a large amount of sand or water and other debris during the operation of the engine, so as to develop the performance of the engine. The developed engine is very capable of withstanding such extreme conditions. Can stand the test, whether it can run stably, whether it will stop and so on.

At this time, on the No. 2 test bench, an engine had already been firmly fixed by the staff, and the engine had already started.

In the control room of the No. 2 test platform, Professor Po, Professor Dai and others were also closely staring at the data on the transparent screen in the control room.

Although the water swallowing test hadn't started yet, the atmosphere in the control room was already serious.

After all, the development and test run of Tunshui is a huge test for any engine.

Seeing that the engine has entered the cruising speed state, Professor Zha said to the controller: "The water swallowing verification can be performed!"

"Yes!" The controller replied, and at the same time he immediately pressed the button to swallow water.

After poking the professor and others, through the huge transparent screen in the control room, it can be clearly seen that at the air intake of the engine, a certain water curtain began to form, countless water droplets, under the strong suction of the air intake, Inhaled into the air intake.

Seeing this scene, both Professor Pok and Professor Zhang felt a little nervous. After all, the engine speed had reached the rated speed at this time, and the temperature of the combustion chamber inside the engine had reached as high as several thousand degrees. Although water will not cause a very large impact on the blades of the engine like ice cubes, but if a large amount of water enters, it can reduce the temperature of the combustion chamber and the turbine part, thereby affecting the efficiency of the engine.

But fortunately, the worries of Professor Zha and others seem superfluous. Although a lot of water droplets have been inhaled by the engine at this time, it has not caused the power of the engine to drop. At the same time, the national data shows that the temperature inside the engine is not It didn't drop, but the temperature inside the engine increased slightly.

Professor Poking knows that this is because the temperature and pressure inside the engine are too high, which causes the water vapor that enters to be quickly decomposed into hydrogen and oxygen in an extremely high-temperature and high-pressure environment, and then burn quickly to become water again. The reason is that the flame ejected from the tail of the engine is no longer pure orange, but orange with a hint of blue, which can be seen.

"Increase the water intake!" At this moment, Professor Zha continued.

"Yes!" Following the professor's order, the controller gradually increased the flow of the sprayed water.

As the amount of water swallowed increases, the amount of water sucked into the engine intake also naturally increases, and the original orange flame also begins to turn into light blue, but fortunately, the temperature inside the engine has not changed There is a qualitative change, just returning to the original temperature.

However, there was no change in poking the professor's face. Instead, he continued to order the controller to increase the force of swallowing water until the output power of the engine and the temperature inside the engine changed.

It was not until this time that Professor Zha ordered to stop the test run. Obviously, the water swallowing verification test run has been completed, and the next test will be the test of swallowing ice and sand.

Of course, the engine used in the ice-swallowing and sand-swallowing verification test will no longer be the same engine that has just undergone the water-swallowing verification test.

In fact, in order to improve the efficiency of the test run and obtain enough accurate data, there will be only one test run project for each engine. Take the previous water-swallowing test run project as an example. , will be immediately sent to the assembly workshop for disassembly and analysis.

The follow-up ice swallowing verification test run will be filled by other engines to continue verification.

So this engine, which has just passed the water swallowing verification test, was quickly dismantled from the test bench by the employees of the laboratory under the attention of Professor Zha and others, and another engine was reinstalled on the test bench. On the test bench, start to continue the test drive.

Wait, if it is a water swallowing test, it is to test the operation of the engine in heavy fog or heavy rain, then swallowing ice and sand is to simulate the operation of the engine when it encounters ice, snow or even a desert.

After the new engine was replaced, Professor Poked immediately gave the order to start the engine, and their faces became more serious at this time. The test of the engine will be even greater, and it can even be said to be the ultimate test of engine performance.

After all, when the engine is running at a high speed, ice and sand are sucked in. This is the ultimate test for the engine inlet blades and other blades, including turbine blades. After all, when the engine is running at such a high speed, if a slightly larger ice Blocks or sand and gravel enter the air intake and hit the blades, which may cause damage to the blades, or directly destroy the engine.

Afterwards, Professor Zha gave the command to start, and the controller naturally obeyed Mr. Zha's command and turned on the simulated button.

As a result, many tiny ice cubes and snowflakes appeared at the air intake of the engine, and as time went on, these ice chips became more and more large. There were even ice chips the size of someone's little finger.

And these ice chips appear near the engine intake, naturally many ice chips are sucked into it by the intake, and the professor and others heard that these large-diameter ice chips are hitting the inside of the intake the sound produced.

For such a verification assessment, although Professor Pok and others are very nervous, after all, this test run is too rough. If it is an official laboratory, it is absolutely impossible to conduct a test drive assessment like this. You must know that he and these people present The experts are very clear that although most of the ice chips used for the test run are ice chips with a small volume and diameter.

But among these ice chips, there are ice cubes with a diameter of about one centimeter! If it is a test run by an official unit, it is absolutely impossible, because everyone knows what such ice cubes mean to the engine.

Of course, as the person in charge of this verification test run, Professor Pok is also very disapproving of conducting such a rough verification test run. He believes that their Tiangong Technology's test run should be the same as the official laboratory, as long as it can reach the official verification test run data will do.

But in any case, although he said that he is the person in charge of this aviation development project, as a private company, the final decision-making power is still in the hands of Wang Bin. Since Wang Bin insisted on conducting such a verification test, he has nothing good way.

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