3.2.2.2 Wind Profile

Wind Profile

This tab controls the parameters of the wind speed and/or turbulence intensity that are applied to the model. When the model has been imported from RFEM or RSTAB, the wind profile in compliance with the selected standard is shown.

Select the Profile type that is to be defined:

Wind Speed or Turbulence Intensity. You can then create the profile by defining its Relative or Absolute values in a table (see Section 'Wind Profile Values' below). With the Relative option, the reference value 1 corresponds to the inlet velocity defined in the General tab or to the turbulence intensity specified in the Advanced tab, respectively. You can then define the Factor of each height level in the Wind Profil Values table. When the Absolute option is set, you can enter the values of the wind speed or the percentages of the turbulence intensity directly. The header of the table below is changed to Speed or Turbulence, respectively.

To define the wind speed or turbulence intensity at specific height levels in this table, enter the Number of rows required and click [Apply]. Then you can define each Height and allocate the Factor, Speed or Turbulence (depending on the option selected above). Alternatively, you can paste the values of an Excel sheet. Click the [Refresh Chart] button to display the Wind Speed or Turbulence Intensity diagram of your data.

The [Constant] button creates a uniform wind profile for the entire model. Only two table rows are needed.

If you use the [Generate] button to create a wind speed profile, a new dialog box is opened.

Define the height of the profile and the number of intermediate points. You can select between a logarithmic and linear type of profile. Enter the height at which the inlet velocity (defined in the General tab) is applicable. Finally, select the relevant landscape type to define the roughness of the terrain: small towns and villages, large towns with high buildings, or large cities with skyscrapers. Then click [OK] to generate the wind speed profile.