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August 30, 2018, 06:37 |
CFX Averaged quantity
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#1 |
Senior Member
Join Date: Mar 2013
Location: Germany
Posts: 357
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Hi All
I am running a URANS computation and I am wondering how can I get the averaged quantity of the variables that is of my interest including the expressions I have used. ? I can only get instantaneous results. But if I want to see the velocity averaged results and plot the contour for some timesteps or average over time, how can I achieve that ? I found the way using Output Control-->Trn Stats--> Arithmetic Avg--Output variables.-. But here the available variables are limited and I cant get them for the expressions that I have given. Kindly help me with this !! |
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August 30, 2018, 11:05 |
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#2 |
Senior Member
Gert-Jan
Join Date: Oct 2012
Location: Europe
Posts: 1,922
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I think you should assign your expressions to some additional variables in Pre. Then I think you can generate some transient statistics on these additional variables.
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August 30, 2018, 18:08 |
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#3 |
Senior Member
Join Date: Jun 2009
Posts: 1,878
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Would you mind describing the issue a bit further?
Here is what I understood (feel free to correct me). You have your own expressions, say LIBRARY: CEL: EXPRESSIONS: MyExpr1 = Velocity u * whatever - something else END END END Now you would like to see/plot the Transient Average of say MyExpr1. Then, you create an Additional Variable (Insert), say MyExpr1AV LIBRARY: ADDITIONAL VARIABLE: MyExpr1AV Option = Definition Variable Type = Unspecified Units = <correct units as you expect out of MyExpr1> Tensor Type = SCALAR END END So far, so good, correct? Then, you activate/associate the AV to the domain where you want such expression to be valid. Say Domain 1. Then, edit Domain 1, goto Fluid/Solid Models, activate MyExpr1AV, select Algebraic Equation, and set it as Additional Variable Value = MyExpr1 Apply the panel, and repeat for all domains you want this to propagate to. Now visit your OutputControl panel, and MyExpr1AV should be listed for transient statistics. I am sure you can continue from here. Hope I understood your question correctly. Good luck |
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