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April 21, 2021, 10:54 |
Moving average
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#1 |
New Member
Martin Rønnov Andersen
Join Date: Oct 2018
Location: Aalborg, Denmark
Posts: 10
Rep Power: 8 |
Hello,
Is it possible to create a moving average on a field variable, obtained at a face/boundary? I want to be able to set the inlet velocity, based on the static pressure. The static pressure is then used to determine a volumetric flow, by evaluating a specific fan curve. Currently, I'm evaluating the fan curve for 1 value, in each iteration, and this causes the model to diverge, simply because it's way too aggressive - the static pressure spikes every time the model changes the inlet velocity. I've tried to create a "Report Definitions" and set it to average over 5 iterations but this didn't work. Next, I've tried to adjust the interval for when the fan curve should be evaluated - so the model would evaluate the fan curve every 20th iteration, in order to obtain a steady value for the static pressure - this didn't work either. I'm wondering if this can be done with a UDF? Thank you! |
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April 22, 2021, 10:24 |
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#2 |
Member
Vestdam
Join Date: Nov 2017
Posts: 44
Rep Power: 9 |
I have been wondering the same. Hope someone can help
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Tags |
average, fan curve, fluent, iteration, moving |
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