Re: [EnergyPlus_Support] Re: Further clarification on wind direction for COMIS SITE WIND CONDITIONS

["Michael J. Witte" <mjwitte@xxxxxxxx>]

#2 is correct.

On 20 Mar 2003, at 23:59, waspoorboy wrote:

> So, the following, which is correct?
> #1:EnergyPlus/COMIS doesn't use the wind direction data from 
> weather/EPW file. It only uses the wind directions from the user input
> in IDF file. #2:EnergyPlus/COMIS does use the wind direction data from
> weather/EPW file. It gets the wind direction from weather/EPW and get
> other values by interpolating between the two COMIS SITE WIND
> CONDITIONS.
> 
> Thanks a lot,
> Ming
> 
> 
> 
> --- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Michael J. Witte" 
> <mjwitte@g...> wrote:
> > Further clarification on wind direction for COMIS SITE WIND 
> > CONDITIONS:
> > 
> > The user selects the wind directions and you are supposed to enter
> > multiple wind condition objects (see I/O ref p. 210) as needed to
> > specify different conditions on different sides of the building.  
> In 
> > the 3zvent example, there are two such objects:
> > 
> >   COMIS SITE WIND CONDITIONS,
> >     0.0,  !- Wind direction {deg}
> >     0.20,  !- Plan area density {dimensionless}
> >     0.18,  !- Exponent of Wind velocity profile {dimensionless} 0.0;
> >      !- Surrounding building height {m}
> >  
> >   COMIS SITE WIND CONDITIONS,
> >     180.0,  !- Wind direction {deg}
> >     0.20,  !- Plan area density {dimensionless}
> >     0.32,  !- Exponent of Wind velocity profile {dimensionless}
> >     15.0;  !- Surrounding building height {m}
> 
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