Void Fill boundaries in a tank

[fizzy1987]

Hello there,

I Hope all of you are quite well

I have an issue regarding the volumes in a tank...

Basically I want to half full a tank with water and the other half with air. How can I do that?

The only choice given by void fill is to cover the whole tank with either water or air.

King regards,

George

[Jon.Wilde]

Model half and half in CAD and then use the Free Surface modeller shown here. No need to use the void fill -  are you aware that a sealed but hollow volume brought through from CAD will be auto filled in CFD?

[fizzy1987]

I am aware that a sealed but hollow volume brought through from CAD will be auto filled in CFD.

My tank is a distillation unit with one input and two outputs (pump and outcome valve).

I tried the free surface modeller.

Thank you very much.

[Jon.Wilde]

All sounds totally possible in Simulation CFD - perhaps share a CFZ file if you run into further issues.

Thanks,

Jon