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Old   May 22, 2017, 06:38
Default CFD post case compare
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Mohammed Ameenuddin
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Hi all,

I have two different cases say, "flow 1" and "flow 2". I would like to plot the percentage error of wall shear stresses in CFD post.
((WSS1-WSS2)/WSS1)*100
After going through the manual, I have used case comparison, but it only calculates the difference between the two cases. Then i tried making a variable,
percent error = (Wall Shear.Difference/Wall Shear)*100.
I feel the value that i get after I use it is not right. Because I am not sure the "Wall Shear" here refers to which case flow 1 or flow 2.

Then again I tried using another form say,
percent error = (Wall Shear.Difference/Wall Shear.Case:1)*100
I get a syntax error

Successfully read 37 characters:
Wall Shear.Difference/Wall Shear.CASE
then error detected at:
:1
Details - Unexpected character.

I am not clear on how to get the percent error from two cases. Any kind of help regarding this would be appreciated.

Thanks and Regards
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Old   December 7, 2022, 09:02
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Hello,
Did you find a solution to this?
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