[wjarrah]

Hello everyone,


I am a new user of openFOAM (pretty cool for the moment)
and I would like to know what is the difference between these pressure boundary conditions' types :

1) buoyantPressure
2) zeroGradient


and more generally what is "zeroGradient" used for ?

I would appreciate it if you could help to find a good reference explaining the most common boundary condtions (and their types)


Thanks a lot !