RE: [EnergyPlus_Support] AFN Air exchange by Turbulence

[Lixing Gu <gu@xxxxxxxxxxxx>]

Tobias:

Thanks for providing a paper and a suggestion for us to enhance the model.
Without see the paper, my answer to your question is "I don't know". I need
to read the paper first. Is it possible to send me an electronic copy to my
personal E-mail address: gu@xxxxxxxxxxxx?

Thanks.

Lixing 

-----Original Message-----
From: EnergyPlus_Support@xxxxxxxxxxxxxxx
[mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of tobiasschulzeoooitu
Sent: Monday, October 10, 2011 10:21 AM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: [EnergyPlus_Support] AFN Air exchange by Turbulence

The effect of turbulence at the façade can be important and tends to
increase flows through external openings, particularly in the case of
single- sided ventilation. The additional ventilation this provides can be
accounted for by using the equation provided in CIBSE Applications Manual
AM10 (CIBSE, 1997) based on the work of Warren and Parkins (1984), i.e.
q = 0.05Aν where A is the area of the opening and ν is the local
external wind speed.

taken from Coley, D. A. (2008). "Representing Top-hung Windows in Thermal
Models." International Journal of Ventilation 7(2): 151-158.

My question: would it be possible to integrate this very simple estimation
to take into account the turbulence effects within the AFN? - may be best in
the "detailed opening".
turbulence effect factor: 0.05 (may be default or zero as default). Or is
there already a way to model these turbulence effects?

Best,
Tobias




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