UTCI Comfort Map Wind Speed

Hello Everyone,

I am attempting to use CFD wind speed results as inputs to the wind_speed input of the UTCI Comfort. I fed the folder path to the input, but upon running the simulation this error shows up. The csv file has also disappeared from the original folder containing the csv file. Note that the simulation runs without problems if I don’t feed custom wind speeds.

  1. Solution exception:
    The recipe failed to run with the following error(s):

2026-02-26 16:43:12 ERROR: “SplitAirSpeedFolder” failed. See below for more information:
FileNotFoundError: [Errno 2] No such file or directory: ‘C:\Users\Kenneth-HM.Leung\AppData\Local\Temp\SplitAirSpeedFolder-d1ivi_k1\input_folder\focusAreas.csv’

Execution Summary
Scheduled 39 tasks of which:

  • 23 ran successfully:
    • 1 CopyGridInfo(…)
    • 1 CopyRedistInfo(…)
    • 1 CopyResultInfo(…)
    • 1 CreateDirectSky(…)
    • 1 CreateDynamicShadeOctrees(…)
  • 1 failed:
    • 1 SplitAirSpeedFolder(…)
  • 15 were left pending, among these:
    • 1 were missing external dependencies:
      • 1 PrepareFolder(…)
    • 1 had failed dependencies:
      • 1 _PrepareFolder_1f915e33Orchestrator(…)
    • 12 had missing dependencies:
      • 1 LetUtciComfortMapFly(…)
      • 1 RestructureConditionIntensityResults(…)
      • 1 RestructureConditionResults(…)
      • 1 RestructureCspResults(…)
      • 1 RestructureHspResults(…)
    • 1 was not granted run permission by the scheduler:
      • 1 PrepareFolder(…)

This progress looks :frowning: because there were failed tasks

Would be grateful if someone could have a look! I have attached the csv file. I am simulating for one hour only.
image

focusAreas.zip (14.5 KB)

image

image

Many thanks.

Hi @homan95,

I am not able to recreate the issue. Are you able to share the Grasshopper/Rhino file that you used?

Hello,

I’ve put together a sample gh file and wind speed (in the zip file). The rhino file is in this google drive link: https://drive.google.com/file/d/1gnv_sBPa_dISPWEIoWxtKKIQ9_CnUOda/view?usp=sharing

focusAreas.zip (314 Bytes)
20260304_UTCI_test.gh (77.1 KB)

On a separate issue, I realise that if the geometry is too complicated e.g. if “trees” in the rhino model is included (component disabled in grasshopper now), the simulation would take significant longer to finish (or in a worse case memory runs out eventually). Should I raise this issue in a separate thread?

Thank you so much for your help again!

Best regards,
Kenneth Leung