Compressor section of gas turbine engine duct shaoes

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SUMMARY

The discussion centers on the design of gas turbine engine duct shapes, specifically the preference for convergent shapes over divergent ones. Convergent ducts maintain constant axial velocity while accommodating the increase in flow density. In contrast, divergent passages are utilized in turbines where density decreases due to expansion. This understanding clarifies the aerodynamic principles governing gas turbine design.

PREREQUISITES
  • Basic understanding of gas turbine engine components
  • Knowledge of fluid dynamics principles
  • Familiarity with airflow characteristics in duct systems
  • Concept of axial velocity in compressible flow
NEXT STEPS
  • Research the principles of compressible flow in gas turbines
  • Study the effects of duct shape on airflow and performance
  • Explore the relationship between density and velocity in convergent and divergent ducts
  • Learn about the design considerations for gas turbine engine components
USEFUL FOR

Aerospace engineers, mechanical engineers, and students studying gas turbine technology will benefit from this discussion.

cw1690
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why convergent rather than divergent? is this to maintain the constant air velocity.
Can someone explain this better to me. Would be helpfull
 
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I wonder why no one replied on this.

This is to take care of density increase in the flow while keeping constant axial velocity. In turbine density decreases do to expansion so passage is divergent.
 
Thanks for the late reply to this, I have managed to understand this now. Thanks for your help anyways
 

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