[osha]

I am writing a BC for a patch in my computational domain using groovyBC which uses the average value of temperature on a faceSet created using topoSet utility.

I can write the average temperature on faceSet using swakExpression but I am not sure how to use it in groovyBC for a faceSet created from topoSet. Is it possible?

Instead, one can access the temperature of other patches in groovyBC but is it possible to access field variables like temperature on a faceSet.

Thank you for your insight and help.

[gschaider]

Originally Posted by osha

I am writing a BC for a patch in my computational domain using groovyBC which uses the average value of temperature on a faceSet created using topoSet utility.

I can write the average temperature on faceSet using swakExpression but I am not sure how to use it in groovyBC for a faceSet created from topoSet. Is it possible?

Instead, one can access the temperature of other patches in groovyBC but is it possible to access field variables like temperature on a faceSet.

Thank you for your insight and help.

It has been described a number of times. The latest instance would be http://openfoamwiki.net/images/7/7a/...icTraining.pdf sildes 152ff (just replace cellSet with faceSet)

[osha]

Originally Posted by gschaider

It has been described a number of times. The latest instance would be http://openfoamwiki.net/images/7/7a/...icTraining.pdf sildes 152ff (just replace cellSet with faceSet)

Dear Bernhard,

Thank you very much for pointing me to right direction. I apologize as I didn't pose the question as I should have. Your solution does answer the question I had asked in first post perfectly.

I think I should give you a little more background on what I am trying to achieve. I have developed a multiRegion solver which is similar to chtMultiRegionFoam. A simple representation of my case is shown below.



My sensor is a faceSet in different region, i.e. AIR and using the average temperature calculated on this faceSet I intend to calculate my boundary condition using an expression that I define using groovyBC on a patch defined in different region, i.e. SOLID.

As the faceSet is defined for the region AIR, it doesn’t get accessed by groovyBC on the region SOLID. I get an error

XYZ not found in table. Valid entries:
0
(
)

This is the reason why I evaluated the expression using swakExpression with a hope that it can be accessed by groovyBC like internalField.

Sorry again for curt explanation of my problem earlier.

[osha]

I think I have figured it out. If someone else is facing similar problem like the one described above, you can refer to the example multiRegionHeaterFeedback in Examples/groovyBC folder.

the syntax is like this

<nameOfVariable>{ faceSet'<nameOfFaceSet>/<nameOfRegion>} = <expression>

Bernhard, thank you very much for all the help!

[gschaider]

Originally Posted by osha

I think I have figured it out. If someone else is facing similar problem like the one described above, you can refer to the example multiRegionHeaterFeedback in Examples/groovyBC folder.

Good. I was just going to point you to the same Example

[osha]

Thanks again Bernhard. As I explore OpenFOAM further I realize that no other tool improves FOAM's usability like swak4foam.