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CFD of Nozzle with Chevrons

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Old   April 12, 2021, 07:12
Default CFD of Nozzle with Chevrons
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Hello!
I have been trying to analyse nozzle with chevrons at the end.
I made the geometry and extracted the fluid domains (for fine and coarse meshing) and meshed with mostly default settings.
After running the solution with the k-epsilon model, the nozzle outlet's velocity is coming out to be a lot lower than what it should be compared to theoretical calculations.
Is there any advice you would like to give? I am a beginner in CFD.
I have also attached an image of the model.
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File Type: jpg Screenshot 2021-04-12 163911.jpg (39.7 KB, 3 views)
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chevron, nozzle, nozzle simulation

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