[cedrik]

Hi,
I'm trying to perform a air flow study for aerodynamic comfort on a island (picture) . I'm using the turbineSiting tutorial with ABL conditions and I manage to have results but I still have some questions I wonder.
I need to see results at 1.5m from the soil in every place of my island (so I have to do several cutting plane).
As my results have to be very precise in a specific area (1.5m from the soil) I have a question for you :
Where can I choose the Zground ?
At the river level? At the lower level of my island?
I guess this choice is very important and I can found information about it. Could somebody help me please?