Engine Gas Turbines (Supplementary) USCG Question #14 (Set 1)

What is the function of the stator in a gas turbine compressor?

Official USCG Answer & Rule Citation

Correct Answer: Option B — To convert velocity to pressure.

In a compressor, stator blades act as diffusers. As air flows through the stationary vanes, the passage area increases, causing the air velocity to decrease. According to Bernoulli's principle, this reduction in kinetic energy (velocity) results in a corresponding increase in static pressure, which is vital for efficient combustion.

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