[Bufacchi]

Hi Foamers,

I ran into a variation in the total heat release rate when running two similar cases that were not expected to me. Let me explain what I did.

I was running the case oppositeBurningPanels (fireFoam solver) with minor modifications as below:
1. the domain size in the Y direction was shortened from 4.2m to 2m;
2. the block resolution in the Y direction was lowered from 124 to 60;
3. the refinement block in the Y direction was shortened from 2.4m to 1m;
4. the panels height was shortened from 2.4m to 1m.

Running the case as above, after time=3.00s I got a total heat release rate of -252 J/s.

Then, for the second case I removed the right panel (in the original case there are two opposed panels). That's all I did.
Running the second case with this single change, after time=3.00s I got a total heat release rate of -45 J/s. This value is 18% of the value in the first case.

My expectation was the value to be 50% of the original one.

Is there any reason for the total heat release rate to be so small in the second case?

Thanks,

Paulo