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[Other] radial diffuser geometry generation problem

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Old   March 28, 2022, 18:32
Default radial diffuser geometry generation problem
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Merouane Benderradji
Join Date: Dec 2021
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Hello everyone, I hope you are doing well
I am trying to do a CFD simulation on a centrifugal compressor stage.
I have successfully defined the compressor rotor using BladeGen but I have issues with the geometry creation of the radial diffuser.
the radial diffuser is consisted of 23 straight edged blades just like the one in the picture below, I did the drawing in solidworks and retrieved the meanline cartesian equation then I have calculated the theta angle distribution and bundled everything in a rtzt file.
after loading it to BladeGen I get a different output then anticipated with curved fluctuations in the edge, the angle distribution is in one of the attached pictures.
I hope someone can help me through this I am working on the radiver 2 centrifugal compressor and I have been stuck here for weeks.
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File Type: jpg Capture4.jpg (106.7 KB, 3 views)
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bladegen, radial diffuser

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