Compressor section of gas turbine engine duct shaoes

AI Thread Summary
Convergent passages are used to maintain constant axial velocity while managing the increase in flow density. In turbines, the flow expands, leading to a decrease in density, which is why divergent passages are utilized. This design choice helps optimize performance and efficiency in fluid dynamics. Understanding these principles is crucial for effective turbine operation. The discussion highlights the importance of airflow characteristics in engineering design.
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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