Running outdoor wind case with SouthEast wind

grasshopper butterfly
1

Hi,

I was trying to run a outdoor case with SouthEast wind (155 degree). I rotate the wind direction then get an error message like below:

"
Runtime error (AssertionException): Invalid input: 1.44
Traceback:
line 112, in init, “C:\Users\fedra_analysis\AppData\Roaming\McNeel\Rhinoceros\5.0\scripts\butterfly\grading.py”
line 290, in calculate_grading, “C:\Users\fedra_analysis\AppData\Roaming\McNeel\Rhinoceros\5.0\scripts\butterfly\windtunnel.py”
line 57, in script
"

The change I did is as follow:

image
image.png960×316 36.1 KB

Can anyone help on this?

Best
Bing

2

Hi @Bing

I would suggest instead to rotate your geometry accordingly and not the wind tunnel. The gradient probably fails cause it is done in the x,y,z directions which are now in an angle with the wind tunnel (guessing here).

But generally I find it’s best to keep the tunnel static and rotate your geometry.

Kind regards,
Theodore.