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-   -   Good results but bad imbalances? (https://www.cfd-online.com/Forums/cfx/194345-good-results-but-bad-imbalances.html)

Guille1811 October 13, 2017 20:53

Good results but bad imbalances?
 
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Hi everyone, i modelled an axial fan and the results obtained (power consumption and velocity field on the outlet) are pretty close to technical specifications (like 5% error). The thing is some imbalances didnt converge to zero (see picture attached).

Is this important or can be overlooked? If it is important, how do recommend to fix it?

Greetings!

ghorrocks October 14, 2017 06:07

Whether this is a problem is up to you. You are within 5% of the expected value - if that is close enough then your results are good. If you want to be more accurate you will need to do more work.

If you decide to do more work this FAQ may help: https://www.cfd-online.com/Wiki/Ansy...gence_criteria

Guille1811 October 15, 2017 03:03

Thanks Glenn


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