[stockzahn]

Ahoi,



I started to work with OpenFOAM and unfortunately I'm not sure about several problems: If it's me (most probably) or something else. I hope to be able develop my skills fast to contribute to this forum, but for now unfortunately I only have questions.


I would like to use chtMultiRegionFoam to calcuate the heat transfer of an electromagnet. In the end the system will consist of several solid and fluid regions. For starters I wanted to simulate only several solid regions with Dirichelt- or Neumann-BCs and progress afterwards with the fluid regions when I had a working model of the inner solid regions. However, when my model consists only of solid regions, chtMultiRegionFoam complains that it cannot find a fluid region:


--> FOAM FATAL ERROR:
fluid not found in table. Valid entries: 1(solid)


When I implement a fluid region it works. Now I wanted to ask if it is possible to circumvent the introduction of a (useless, but disturbing) fluid region and to get the solver running only with solid regions?


Thanks,
stockzahn

[tobiasS]

Hallo Stockzahn,
You have to use the old form of regionProperties.. I mean the one of version 5.0 for example. Then you will have no problem calculating only solids. It goes so:
regions
(
fluid ()
solid (your solid region/s)
);

[stockzahn]

Thanks a lot! I was using foamSetupCHT to generate the region folders from templates and it changes the regionProperties to


1( solid X ( solidregions ))



I just have to change it back.