WAsP CFD Result Viewer 1 - Release Notes

WAsP CFD Result Viewer 1.4.0.56

September 2025

• Enable site assessment by turbulence at reference masts in external CFD domains.

• Alignment of observed turbulence statistics in WAT and WAsP-CFD result viewer.

• Revised wind-shear calculation.

• Import barometric reference data from GWC file.

• Save site assessment maps to file or clipboard with scaling information for WAsP background images.

• Load CFD tiles and turbine positions via WAsP workspace file.

• Import turbine positions from WAsP or WEng via file or clipboard.

• Export site assessment data for turbine positions as input for WAT.

• Save and reload collections of site assessment input. 

Removed feature

• The Associate site assessment input with CFD result file option is removed. Site assessment input is now associated with a reference mast not necessarily inside the local CFD domain. 

Bug fixes

• Effective turbulence is now presented for mid-bin wind speeds as in WAT.

• Incorrect column headers in tables of vertical profile, horizontal profile and directional variation.

• Occasional faults in 2D transect plots due to false interpolation of directional data.

WAsP CFD Result Viewer 1.3.0.55

December 2020
• Update graphics more responsively, e.g. after loading a new WAsP CFD result file

Version 1.3.0.54

December 2020

New features:

• Flow correction from one position to another
• Map-based site assessment with
       o Support for IEC 61400-1 Ed. 3 (2005), amendment A1 (2009) and Ed. 4 (2019).
       o Support for all IEC wind turbine classes.
       o Maps of wind shear, flow inclination angle, extreme wind speed, mean wind speed, mean wind probability, effective turbulence intensity, power density and gross annual energy     productions. These maps are evaluated at a user-defined height and directionally averaged by the mean wind climate.
       o Masks for areas with non-compliant wind conditions.
       o Local statistics for a user-defined site including
              -  Sector-wise distributions of frequency, Weibull parameters, conditional frequency at a selected wind speed, power density, and turbulence intensity.
              -  Mean wind probability distribution to the distribution used for IEC design load cases.
              -  Effective turbulence intensity compared to IEC normal turbulence model.
              -  Annual extreme winds and fitted Gumbel distribution.
              - Evaluation of the Weibull K parameter.
       o Import of additional data
              - Generalized mean wind climate from WAsP.
              - Generalized extreme wind climate from WAsP Engineering.
              -  Observed turbulence statistics from WAT.
              -  Wind turbine power curve in WAsP format.
       o Local air density modelled as in WAsP.
       o Map of terrain complexity with detailed assessment for a user-defined site.

Version 1.2.0.51