[EnergyPlus_Support] Wind Speed for Surface Orientation

["Micheal" <mhamilton3312@xxxxxxxxxxxxx>]

I am looking for how E-Plus determines "Surface Ext Wind Speed" output 
from site wind speed as listed in a design day object. I imagine there 
is some formula/rule that involves surface orientation but I cannot 
find it in the documentation. I could just be overlooking something. I 
did find adjustments for elevation differences but I do not believe 
that this is my problem here. In case magnitudes are important, I have 
a south facing surface wind speed of 413 ft/min and a design day wind 
speed of 1311 ft/min. The surface is only 22 ft high.

Any help on this would be greatly appreciated.

Thanks,

Mike




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