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The degree of reaction in an axial compressor stage is

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The degree of reaction is \[ \boxed{ R = \frac{\Delta h_{\text{rotor}}} {\Delta h_{\text{stage}}}. } \] Typical axial compressor stages have \[ \boxed{ R\approx0.5, } \] but it is not always exactly \(0.5\).

Updated On: Jul 14, 2026

The ratio of static pressure rise in the rotor to total stage enthalpy rise
The ratio of rotor speed to airflow speed
Always \(0.5\) in all compressors
Ratio of inlet velocity to exit velocity

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The Correct Option is A

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The degree of reaction in an axial compressor stage is

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The Correct Option is A

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