One fluid-fluid interface erros

[saulf_f]

I’m am fairly new to simscale and I am trying to run a Conjugate heat transfer V2 simulation on a building and how it reacts to the solar/radiation effects. But I have been receiving an error saying
" The following simulation run(s) failed:

• Run 1
  • Your simulation has at least one fluid-fluid interface. This type of interfaces are not allowed if radiation or solar load are enabled".
    I’m not really sure what this error means as there is not much detail.

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[igaviano]

Hi @saulf_f, thanks for posting on the forum and welcome to the SimScale Community

Taking a look at your simulation, I see that you haven’t created a flow region and set the walls of your domain as being composed of air. In order to observe the behavior of air in your domain, you need to create a flow region as described here:

• How to Create Flow Volume Extraction? | Knowledge Base | SimScale

I think you’d also benefit from running some tutorials before getting to your simulation. I think these two might be particularly interesting:

• Conjugate Heat Transfer in U-Tube Heat Exchanger | SimScale
• Thermal Comfort In a Meeting Room | Tutorial | SimScale

Does that help?

Best,
Igor