Aircraft System Help: What is the Branch of Above?

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SUMMARY

The discussion centers on the admission system of an aircraft, specifically analyzing the two branches of the system. The upper branch is identified as a closed recirculation path, potentially serving as a BLEED-AIR system to manage temperature during varying flight conditions. The lower branch is confirmed to direct air into the turbomachinery. The conversation highlights the importance of understanding airflow dynamics in supersonic flight and the role of temperature management in engine performance.

PREREQUISITES
  • Understanding of aircraft admission systems
  • Knowledge of BLEED-AIR systems in jet engines
  • Familiarity with turbomachinery operations
  • Basics of numerical computation in fluid dynamics
NEXT STEPS
  • Research the function and design of BLEED-AIR systems in modern jet engines
  • Study the principles of turbomachinery and its impact on aircraft performance
  • Explore numerical computation techniques used in fluid dynamics simulations
  • Investigate temperature management strategies in high-compression aircraft engines
USEFUL FOR

Aerospace engineers, aviation students, and professionals involved in aircraft design and performance optimization will benefit from this discussion.

Clausius2
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See the attached figure. It is the admision system of an aircraft (I think it admits supersonic flight). The air enters by the left side. But I'm not sure what are these two branches. The branch of above is closed (it is a recirculation of fluid there) and the below one is opened, so the air exits by there.

Any suggestion?

I would think the branch of above seems to be the entrance to the compressor, but it is closed.
 

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Its tough to tell from that pic, but could it be BLEED-AIR?
Higher compression ratios imply larger temperature rises; modern engines only achieve their high compression ratios at high altitude with very cold intake air (around –54 C). When taking off in warmer air they run at lower compression ratios to keep the temperature of the compressed air within turbine temperature limits by bleeding air away from the compressor stages and dumping it overboard.
 
Thanks for trying it. After being afraid for that, I have telephoned to one classmate and he has cleared me it up. The higher branch is some closed device for retaining undesired and strange particles. The lower one goes into the turbomachinery.

Anyway, thanks russ. It is a mesh for numerical computation.
 

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