Wind Scaling Factors

The wind scaling factor is a multiplication factor which is multiplied to the wind velocity. Wind scaling factors may be defined both as a global value and as distributed values at user-defined locations (chainage points).

The 'Wind scaling factors' editor will appear in the Setup tree view, if at least one Wind friction boundary condition exists.

Default factor

A default wind scale factor is defined at the top of the editor. It is applied throughout the channels network unless local values have been defined.

Local factors

By using local wind scaling factors, it is possible to adjust the wind shear stress to reflect local variations within the domain. Local values overwrite the default value. Local values are applied at specific locations defined by the channel ID and a chainage value.

Local values are added or deleted using the 'Insert' or 'Delete' buttons above the table.

 

Figure: The Wind scaling factors editor

Note

If two or more local values are defined on the same channel, the values in intermediate calculation points will be calculated by linear interpolation.