What's in a WRB file exported from a WindSim project?
A WRB (Wind Resource Binary) file is a standardized binary format used to store gridded wind resource data. It is primarily designed to represent atmospheric variables across multiple spatial layers, directions, and heights for wind energy analysis and simulation. WindSim software exports WRB files to include wind field variables for each grid point.
WRB files exported from WindSim include the following variables:
- Elevation: Ground elevation (meters)
- Roughness: Surface roughness length (meters)
- Speed: Mean wind speed (m/s)
- Dir: Wind direction (degrees, 0–360)
- TI: Turbulence intensity (%)
- Inclination: Inflow angle (degrees, ±180)
- Probability: is just constant value (0 in Desktop export)
Each directional and height-dependent variable (Speed, Dir, TI, Inclination) is stored as a separate block for every combination of wind direction sector and vertical height layer.
In WindSim Desktop, there is an option in the Export menu titled "Export OpenWind WRB file" that can be used to export a WRB file.