Adjusting 'Ground Level' of the Domain



Users are required to enter the ground level when setting up the first ventilation of the project.


This is important for two reasons:


  1. It adjusts the profile of the atmospheric boundary layer.

  2. It tells the software where to put the bottom “wall” boundary condition, where no flow can move in the negative z-direction.



If the ground was incorrectly entered, and you have not started any simulations then you may change the ground level from the Project Menu: Project -> Set Ground Level.


Picture 62



If simulations have already started, then it is required to delete them to change the ground level of the project.


Picture 63