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Frozen rotor turbine - low efficiency

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Old   December 20, 2022, 13:36
Default Frozen rotor turbine - low efficiency
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I got the task to calculate some turbo turbine wheels with frozen rotor.
Some how I have a bug inside my simulation, my efficiency is between 30-40% only.
Could somebody show me an example report?

I have coupled, SST, Ideal Gas, Air (sutherland law).
Turbine boundary has Reference Frame Rotating, Axle def is correct and checked.
Tangential Velocity shows no difference (fixed or not).
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Old   January 2, 2023, 17:07
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I have found the mistake.
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