[Bldg-sim] Natural Ventilation using FDS / OpenFOAM

[Paul Carey]

Shariq

We have used NIST to carry out evaluations of nat vent designs fairly  
successfully. Obviously it goes without saying that boundary  
conditions are very important here. We have open foam as well but  
haven't carried out nat vent designs in it yet.

Similarly to IES the offering from Designbuilder is a good tool which  
we have used a number of times for such buildings. It uses the  
energyplus simulation engine and the results of your simulation can be  
linked to the CFD model.

I am due to give a webinar on the 23 march on it's use for this  
purpose and I would suggest it might be useful for you to register for  
it. I believe further details are available on the designbuilder  
website (www.DesignBuilder.co.uk).  This software is very  
competetively priced and has a very intuitive GUI & modelling process.

ESPr might offer another option but I can't offer any advice on it's  
Cfd capabilities though I do believe it has them albeit fairly crude.   
It's thermal modelling engine is open source and it has some advanced  
modelling capabilities beyond many commercial tools. It's user  
interface is in my own opinion quite hard to use.  But if you are  
happy with nist and openfoam my guess us that text based modelling  
doesn't phase you.

Hope this is helpful.

Kind Regards
Paul

Dr Paul Carey
Director

Zero Energy Design Ltd
Www.zed-UK.com












Sent from my iPhone

On 1 Mar 2010, at 20:17, Shariq_Ali at URSCorp.com wrote:

> I'm interested in natural ventilation. Has anyone used NIST FDS or  
> OpenFOAM to successfully model natural ventilation?
> Are there any open source programs out there capable of this?
> Any recommendations for natural ventilation modeling references?
>
> Regards,
> Shariq
>
> Shariq Ali EIT, LEED AP BD+C
> Mechanical Engineer
> URS Corporation
> 1375 Euclid Ave. Suite 600
> Cleveland, OH 44115
> Direct: 216.622.2276
> Fax: 216.622.2428
>
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