Axial-flow compressor aerodynamics: exit flow deviation dependence In an axial-flow compressor, the deviation of the exit flow angle from the blade angle primarily depends on which geometric/flow parameters? Choose the correct option.

Difficulty: Medium

Correct Answer: Blade camber and space–chord ratio

Explanation:

Concept/Approach
Exit flow angle deviation is an empirical/physics-based function of profile camber and cascade solidity (space–chord ratio). Greater camber and lower solidity (higher space–chord) typically increase deviation due to boundary-layer and turning limits.


Why other options fall short
Camber alone or space–chord alone are incomplete; incidence is more relevant to loss and stall margin than to the systematic deviation law used in design correlations.


Final Answer
Blade camber and space–chord ratio

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