Re: [EnergyPlus_Support] Re: Mosquito net

[Edwin Lee <leeed2001@xxxxxxxxx>]

I wonder if it might be more appropriate to perform a CFD analysis ahead of time to calculate the ventilation rate with the mosquito net as a function of wind speed/direction.  Then you could use EMS (or regular E+ inputs possibly) to include the ventilation rate without requiring a mosquito net model.

On Tue, Jul 16, 2013 at 8:27 AM, Aymeric Novel <nanabush@xxxxxxxxxx> wrote:

 

Hi,

I suppose that if you possess a curve or a function that describe the non linear variation of the discharge coefficient due to the mosquito net (do you or do you just know about the non linearity?), you might update its value at each time step using EMS. But also be aware that wind data in weather files are often of bad quality and poorly represent the real local wind. Some CFD methods exists to know better local winds statistics using weather station values and terrain typology. But they won't generate hourly files either.
Or you don't use the wind for natural ventilation calculations, or you mitigate its effect by a coefficient of your choice.

Kind regards,
Aymeric

--

Edwin Lee, PhD

Engineer, Commercial Buildings Research Staff

National Renewable Energy Laboratory

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