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Using a variable to scale a function

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Old   November 17, 2015, 12:54
Default Using a variable to scale a function
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Wolfgang Black
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Hello,

I'm trying to post-process some data in Ensight and I would like to get the circulation along an interface. I can define the interface by a variable I have, we'll call it species.

I'd like to write something like,

if(species.LT.0.99) then
if(species.GT.0.01) then
vort(u)
IntegralSurface(vort,[])
else
end
else
end

But I can't get if/then statements to run. I see the calc. has If_LT but this isn't working the way I thought it should. I'm unsure how to create this in ensight, any advice would be appreciated
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Old   November 17, 2015, 19:43
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Kevin Colburn
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But I can't get if/then statements to run. I see the calc. has If_LT but this isn't working the way I thought it should. I'm unsure how to create this in ensight, any advice would be appreciated

I'd approach this problem in the following manner:
1. Select the parent model part (typically the fluid domain).
2. Using the Element Filter capability (2/3 of the way along the top row of EnSight's icons with the Part selected).
3. Specify a filter rule of Species > 0.99 (remember that the Filtering is "filtering out").
4. Specify a second filter rule, with Species < 0.01; Use the "and" option I believe.
The result, should be that your Parent part (the fluid domain) is now only where species < 0.99 and > 0.01
5. Now, Clip this domain (if needed) to obtain your clip of interest (interface).
6. Compute vort(u) and IntegralSurface(vort,[]) on this clip.

The key here is to first filter the model parent parts based on the species variable. Then, take a clip of that parent... and operate from there.

Please feel free to contact CEI Support directly for any assistance, questions, or additional information.

-Kevin
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