Good results but bad imbalances?

Guille1811 · October 13, 2017, 20:53

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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October 14, 2017, 06:07		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,705 Rep Power: 143	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

October 15, 2017, 03:03		#3
Guille1811 Member Join Date: Oct 2017 Posts: 89 Rep Power: 8	Thanks Glenn