How does the value quantities mean in residual control and relaxation factor?

OK, I think it should be the text like “T” “U” etc.
04_atrium_buoyancy_modified.gh (487.7 KB)
I changed the 04_atrium_buoyancy.gh example a bit to let all the 4 windows as inlet and reduced the wind speed. But I get something like this


this issue is mentioned several time by the others

There are some guess, why it happend,

  1. Rhino is not opened with unit meter or set to meter before the gh file is loaded. It is useless to change the unit to meter if gh file is already open.

  2. The wind speed of inlet is to small and the opening of the roof is too big

any idea?