Tool icon Wind Shear Tool

This feature is coming soon to Windographer 5.

The Wind Shear Tool window allows you to enter the wind speeds at different heights above ground and see the logarithmic and power law profiles that best fit the data you enter.

Enter height wind speed values for two or more heights above the ground. If you have a data file open when you open the Wind Shear Tool window, Windographer will enter the measured wind speed profile from the current document into the table of known data points.

You can also enter a displacement height to see the impact of flow obstacles at ground level.

Windographer plots wind shear profile, showing the wind speeds at each height, along with the logarithmic law and power law profiles that best fit those wind speeds. The window displays the best-fit values of power law exponent and surface roughness.

At the bottom of the window, you can enter another height, and Windographer will calculate the wind speed predicted by the best-fit profiles for that height. For more information on the calculations, please refer to the article on wind shear.

Right-click any graph or table to copy it to the clipboard or export it to a file.

Tip: To calculate the wind shear in a wind regime for which you have measured time series data, open the dataset using File > Open and open the Wind Shear window.

See also

Wind shear

Surface roughness

Power law exponent

Displacement height

Wind Shear window

Exporting graphs


Written by: Tom Lambert
Contact: windographer.support@ul.com
Last modified: July 27, 2018