Machine-translated by Google. Questions are authored in English.
Top

Discussion

The pressure rise per axial compressor stage is limited because

  • A.The rotational speed is limited by the turbine
  • B.The air becomes too hot
  • C.The blades must diffuse the flow, which risks separation
  • D.The blade material cannot withstand the pressure

Answer: C

Diffusion in a decelerating flow is inherently prone to separation, so each row can turn and slow the air only so far. That is why a compressor needs many stages where a turbine achieves a similar pressure change in very few, its flow being accelerated rather than diffused.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.