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[EnergyPlus_Support] Re: Does pressure coefficient affects on the closed openings?
That was wrong in the context: Or you set the Cp to zero.
--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "tobiasschulzeoooitu" <tobias.schulze@...> wrote:
>
> If you dont want to see the effect of infiltration (100% tight) for your closed win, you could just not define the windows and surfaces in the AFN I think. Or you set the Cp to zero. If that is realistic...
>
>
> --- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Lixing Gu <gu@> wrote:
> >
> > The wind pressure coefficients are used to calculate wind pressures on all
> > exterior surfaces. The exterior surfaces can have either operable windows or
> > closed windows. Therefore, you have to apply wind pressure coefficients to
> > all windows, no matter what are operable or closed.
> >
> > -----Original Message-----
> > From: EnergyPlus_Support@xxxxxxxxxxxxxxx
> > [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of Wonjun
> > Sent: Sunday, June 05, 2011 4:34 AM
> > To: EnergyPlus_Support@xxxxxxxxxxxxxxx
> > Subject: [EnergyPlus_Support] Does pressure coefficient affects on the
> > closed openings?
> >
> > Hello fellows
> > When I use Airflow network class, I should enter the wind pressure
> > coefficient for all the windows.
> > But in my model, most of windows are fixed(closed) and only some of them are
> > operable.
> > I calculated pressure coefficient values using CFD only for the operable
> > windows.
> > I suddenly wonder that pressure coefficient affects on the closed
> > windows(fixed windows).
> > I think when the opening is close, airflow rate can be calculated using
> > empirical power-law fomula. So the pressure coefficient is not used. But can
> > not sure what I thought is right or not.
> > If my thoght is right, I can skip caculating all the pressure coefficient
> > such a time consuming thing.
> >
> > I hope that someone give me advice regarding this matter.
> > Thanks in advance.
> >
> > Regards.
> >
> >
> >
> >
> >
> >
> > ------------------------------------
> >
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>
------------------------------------
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