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Warning in OpenStudio [closed]
 
  
 
  
 
 
 
 
 
 
    
        
        asked 8 years ago  
 
 dana94_08's avatar  
 
 
 
 
    
        
        updated 8 years ago  
 
 ericringold's avatar  
 
 
 
 
 
I have the following warning:
 
** Warning ** CalcSurfaceCentroid: 5 Surfaces have the Z coordinate < 0.
**   ~~~   ** ...in any calculations, Wind Speed will be 0.0 for these surfaces.
**   ~~~   ** ...in any calculations, Outside temperatures will be the outside temperature + 9.750E-003 for these surfaces.
**   ~~~   ** ...that is, these surfaces will have conditions as though at ground level.
 
What does this mean??
 
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Closed for the following reason
      the question is answered, right answer was accepted by
      dana94_08 

      close date 2016-06-17 18:03:29.722950
 
 
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        answered 8 years ago  
 
 ericringold's avatar  
 
 
 
 
 
This warning means the simulation has determined that five surfaces in your model have centroids that lie below the building ground plane (Z = 0), and is letting you know that the exterior heat transfer of those surfaces in the simulation will not be affected by wind speed, and the exterior surface temperature will be assumed to be at ground level (the 9.740E-003 is a factor that corrects for the height of the weather station above ground). 
 
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And what I have to do to delete that warning?
dana94_08's avatar
                        dana94_08
                     (
    
        8 years ago
    )
If those surfaces aren't supposed to be below ground, check to make sure the vertices are correct. If they are meant to be below ground, you should set the surface outside boundary condition to reflect that.
ericringold's avatar
                        ericringold
                     (
    
        8 years ago
    )
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        Asked:  8 years ago  
 
 
        Seen: 218 times 
 

        Last updated: Jun 02 '16 
 
 
 
 
 
 
 
 
 
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