Not necessarily I guess. This is probably to test high-altitude engine performance on the ground instead of flying the aircraft test-bed in the future.
Chinese Engine Development
- Thread starter jackbh
- Start date
Pretty sure compressors like this one are meant to drive a constant airstream for wind tunnels. You need to simulate different flight conditions for ground based engine tests, which means your airstream isn’t static, and will have to change speeds based on the particular simulated speed you’re testing engine performance at.
But the linked article did say that one of the application is for high altitude engine test.
I think the all the variable parameters can be simulated by controlling the test station, pressure, temperature and air speed.
Here is the Chinese version
Another application (2nd bold texts) related to aerospace and aircraft is "continues transonic wind tunnel" meaning air speed can be adjusted.
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High altitude engine testing for broader range of flight conditions requires wind tunnels that can simulate moving airstreams.
Quickie
Colonel
It probably can be used to suck out the air from a low-pressure chamber to simulate the thin air in high altitudes. I suppose this is what was meant when the news report mentioned about "high altitude aero-engine test station".
by78
General
The has successfully completed testing. It will be used in the upcoming high-altitude engine test bench. It's capable of moving air at 20,000 to 25,000 cubic meters per minute and has a pressure ratio of 8 to 9, which is the highest in the world among industrial axial compressors. The unit has a total length of 11.5 meters, a width of 5.7 meters, and a height of 4.5 meters; the total weight is more than 400 tons. The core component of the hollow rotor is nearly 11 meters in length, weighs nearly 70 tons, and the inner diameter of the rotor is 1.4 meters.
So basically, China is going for something similar to . It will be a critical piece of infrastructure for developing future military as well as civilian engines, especially high-bypass turbofans. Quite a few of these large axial compressors will be installed at the facility, divided among the test cells. And just like the ASTF, I'm sure it will come with an onsite supercomputer as well. A milestone development for sure.
ASTF facility from the outside:
One of the large ASTF test cells, large enough for testing high-bypass turbofans:
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I don't quite get what you are trying to say. Is there anything that can be tested for an engine in a low pressure chamber with static air stream? I mean if you can build a chamber big enough to house a full-size engine and maintain low pressure in it, that chamber is a wind tunnel, right. You just need to circulate the low pressure air in it from one side to the other while maintaining the low pressure.
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yes, that is what it all about.
@latenlazy, please ignore this, I in #5528 probably misunderstood your reply in #5527 as "this thing is not meant for high altitude test", probably a brain short-circuit in my head.
Lol I was really confused with your reply but thanks for clarifying@latenlazy, please ignore this, I in #5528 probably misunderstood your reply in #5527 as "this thing is not meant for high altitude test", probably a brain short-circuit in my head.