Modules - WindFields
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      How to use the WindFields module

      How to use the WindFields module in Accelerator

      Prerequisites:

      An advanced project in Accelerator where the Map and Model modules has been successfully ran. Or an uploaded WindSim 12 project in which the Terrain is already completed.

       

      Settings:

      • Boundary and initial conditions:
        • Do nesting: Not implemented on Accelerator yet
        • Sector input type: Select which sector you want to run in the simulation
        • Height of boundary layer
        • Speed above boundary layer 
        • Use previous run as input: Continues a previous run, this can be enabled when a a run did not yet reach a satisfactorily convergence, but looks promising.
        • Boundary condition at top
          • Fixed pressure: Suitable on complex terrain
          • No-friction wall: Suitable for flat terrain
          • Diffusive link (moving fixed pressure): Like fixed pressure case but imposing a constant speed at the top. The imposition of a constant speed enables to lower the height of the model and use less cells vertically
      • Physical models:
        • Turbulence model:
          • Standard k-epsilon
          • Modified
          • k-epsilon with YAP correction
          • RNG k-epsilon
          • k-omega model of Wilcox
      • Calculation parameters
        • Solvers:
        • Convergence settings:
          • Use manual definition for specifying
          • Exploratory for initial investigation of a site
          • Accurate if you want as good windfields as possible
      • Convergence monitoring: Sets the point of the map where the spot value plots are located. The monitored spot should be set in an area where the conditions are of interest.

      • Output:
        • Height of reduced wind database: For further post processing of the data only the lower layer of the air column is of interest. Here you can specify the volume. Having a lower height will speed up postprocessing.
        • XY reduced wind database: Only the area inside the refinement area is of sufficient quality and of interest for processing, this option enables a smaller database of the windfields only encompassing that area.

      Running WindFields

      Select 'Run WindFields'.

      The wind field simulations are submitted to the cloud, and simulations for each sector run independently on separate servers.

      The user can follow the progress through the interface, and in the Job status menu, you can

      • Follow progress of each sector job
      • Refresh job status manually
      • Stop all jobs
      • Cancel all jobs
      • Stop / cancel individual jobs, for each sector
      • Check results for each sector after completion
        • Field value
        • Spot value
        • Residual values
        • Residual values log

      When the simulations are completed the download option will be enabled. Download the zip file containing the project and run the RunReports.bat to generate the reports for Terrain and WindFields in the desktop version.