Model & approach
- Model the measurement arrangement and installed fan as one flow domain
- Compare characteristic points and geometry variants with a consistent evaluation method
Project study
Fan characteristic in an installed configuration
A CFD-to-measurement study considered an axial fan within its test or installation geometry and extended the comparison across geometric variants.
Engineering question
The free-fan characteristic had to be distinguished from the effects of the surrounding nozzle, opening and connection geometry.
Boundary conditions
- Steady fan operating points in the installation assessed
- Measured fan characteristic as the comparison basis
Results of the assessment
- Calculated characteristic points were compared with the measured fan characteristic.
- The variant study extended the characteristic comparison to the effect of installation geometry.
Engineering consequence
The study supported assessment of the nozzle, opening and connection geometry in the installed fan system.
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