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Across the stationary blade row that follows each compressor rotor, the flow is

  • A.Raised in total temperature
  • B.Accelerated towards the next rotor
  • C.Diffused and de-swirled with no energy added
  • D.Given further energy by the blades

Answer: C

Because it does no work, the total temperature is unchanged across it and only static pressure rises as the velocity falls. Removing the swirl left by the rotor is equally important, since the next rotor expects the flow to arrive at a particular angle.

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