[esp-r] Re: dailight factors+cfd

[Geissler Achim]

Dear Arianna

in regard to the ventilation study you mention, the CFD model in ESP-r

-          does not have any "porosity" model for obstructions / walls etc.

-          cannot model the environment, you can "only" model one (rectangular) zone in a given model. This can be connected to a zonal afn, though

Also, a (serious) drawback with obstruction blocks in a CFD-zone is that they do not interact with the air flow thermally, only as flow blockages.

Achim


Von: esp-r-bounces at lists.strath.ac.uk [mailto:esp-r-bounces at lists.strath.ac.uk] Im Auftrag von A.Sdei at brighton.ac.uk
Gesendet: Mittwoch, 15. Februar 2012 19:59
An: esp-r at lists.strath.ac.uk
Betreff: [esp-r] dailight factors+cfd

Dear All, I can now use radiance desktop via ESP-r and create and view images. I need to find daylight factors, does anyone know how? I would also need to do some ventilation study and I was thinking of using the cfd facility within esp-r.  I would need to do some tests with and without trees, is there a parameter such as porosity within esp-r which I can use to better define the trees that at the moment are just blocks of solid obstruction? Let me know,

kind regards
Arianna

Arianna Sdei
Architect, MPhil (Cantab)
University of Brighton
Research Fellow, IFORE Project
PhD Fellow


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