CFDRans

  1. Click the CFD model object in the project pane to open the Operation pane.
  2. Select Sector-wise as CFD calculation type.
  3. Select the CFD model as Linear model or CFDRans.
    • Linear model: Applied in projects in flat areas.
    • CFDRans: Applied in projects in hilly areas.
  4. Click the expand icon in the Interested Region section to show the regions.
    All the polygons and regions saved in the project are listed in the list. In the calculation, the rectangle outside the map are expanded by 1 km in all four directions.
    Interested region is the target scope of wind farm planning. The selected interested region displays in GIS and glitters.
  5. Click the OK button to save the changes.
  6. Click the expand icon in the Map section to show the map settings.
  7. Select a terrain map from the Terrain drop-down menu.
    This is mandatory.
    All the map files in the project and public map libraries are listed in the menu. If you select the public map library, the corresponding map is extracted from it according to the interested region you select in the later step.
  8. Select a roughness map file from the Roughness drop-down menu.
    All the map files with roughness information in the project and public map libraries are listed in the menu. If you select the public map library, the corresponding map is extracted from it according to the interested region you select in the later step.
  9. Click the OK button to save the changes.
  10. Click the expand icon in the Control section to set up Min. horizontal resolution.
  11. Click the expand icon in the Configuration section to set up sectors and configuration.
    Note: This section is available only for the CFDRans CFD model.
  12. Input the No. of sectors in the Total Sector Number field. The 360 degrees of interest region are divided into sectors in the defined number starting from 0 degree at center longitude.
    The number of sectors should be larger than 1, and default is 12.
  13. Click the Sector Refinement button to open the corresponding window.
    For each sector, select a number from 1 to 3 in the number of refinement drop-down menu. The sector is refined to minor sub-sectors.
  14. Click the OK button to save the changes.
  15. Select a configuration type in the Configuration drop-down menu.
    • It is recommended to select Default to use the default CFD configuration parameters.
  16. Click the Generate List button in the operation pane. The details of configuration parameters are listed in the pop-up window.
  17. After confirmation of the parameters, click OK to save the changes.
  18. Click Calculate.
    After the task is submitted, a message pops up: Task has been submitted. Please go to task list.
  19. Choose Tools Library > Task List.
  20. Select CFD (for linear model) or CFDRans in the task type menu to check the status.
  21. Click this task, the calculation progress of each sector-wise is displayed in the table below.