Terrain

The Terrain tab is relevant for numerical simulations of wind flow with RWIND. Here, you can define the topology of the building environment.

Dialog Box "New Model – Base Data", Tab "Terrain"

Settings

The following options are available in the "Definition of terrain" list:

• --: No terrain definition (default)
• Horizontal Plane: Define the environment as a flat rectangle
• Inclined Plane: Define the environment as a flat rectangle in an inclined position
• Table: Define the terrain using coordinates in a separate tab (see the image Tab "Terrain | Table")
• Boreholes (if the Geotechnical Analysis add-on is activated): Generate the terrain from the location of the defined boreholes

Tab "Terrain | Table"

Consideration of Terrain Dimensions

Enter the "Terrain dimensions" of the rectangular area. The ΔX and ΔY values are relative to the origin of the model. They are each set in the positive and negative axis direction (see dialog graphic).

For a horizontal terrain plane, you can specify an "offset", for example to define the vertical distance from the model origin for a bridge. In addition, a "Rotation around Z" is possible, which allows you to rotate the terrain rectangle.