CFD in GH+Ecotect 02

Comment

Comment by arie11a0 on February 21, 2011 at 4:52am

Hi Alessio, in the tutorial link that you pointed out, the instructions prompted us to "toggle CFD cell blockages, perform calculations... perimeters". I'm am using ecotect 2011 and  after i click perform calculations, i see 4 options: boundaries, inside, outside, covered in Z. Which option should i choose to obtain an accurate CFD result?

Thanks in advance.

Comment by Hrvoje Petrovic on February 16, 2011 at 4:09pm

Thanks for making it clear and for the link!

Comment by Alessio Erioli on February 16, 2011 at 3:26pm

Hi all,

 

just to make things a bit clearer: I am not working on a new CFD tool, rather using an existing one (which you can find here along with a tutorial on how to use it with Ecotect). The interesting thing is that thanks to gEco it is possible to import CFD data into Grasshopper.

Comment by Hrvoje Petrovic on February 12, 2011 at 8:39am

Hi Alessio,

 

Will the external CFD tool be able to communicate directly with Rhino/GH, and any ideas about when it will be available? Looks like there will be lots of us interested in this one...

 

Cheers,

 

Hrvoje

Comment by Tectonic8 on February 12, 2011 at 7:39am

Alessio,

 

Can you share the nature of the external tool you are using?

Comment by Alessio Erioli on January 30, 2011 at 5:20pm

Hi Tectonic8.

 

CFD is not made through Grasshopper Components. but via an external tool that communicates with Ecotect. What you can see is the vectors grid imported back into Ecotect and then, thanks to gEco, into GH and visualized.

Comment by Tectonic8 on January 27, 2011 at 11:32am

Hi Alessio,

 

Any further info availible to share regarding your process here? I would like to try wind simulation using your components.

 

regards

JT

Comment by Alessio Erioli on November 2, 2010 at 8:48am

Hi tectonic8!

B/W scale is coupled to intensity (white=maximum, black=minimum), the darker areas you are talking about emerge because of a concentration of overlapping darker arrows. Although B/W can be quite stilish it is not very clear about mapping value correspondances. In the future I'll have to work on this aspect for sure.

Thanks for your interest!

Alessio

Comment by Tectonic8 on November 2, 2010 at 7:52am

Alessio,

Am I correct in assuming the darker points of the CFD map, ie where there are more arrows, indicates higher wind speeds?

Comment by Alessio Erioli on October 30, 2010 at 1:57pm

Hi Arthur!

Sorry to get back to you so late!

In the meantime, Ursula and Thomas posted gEco examples which pretty well explain the connection to and from Ecotect, so you can directly check there since it's essentially the same process (only the shape changes).

As for the CFD part, I'm sorry but I am not allowed to share that part at the moment.

Sorry again to be so late!

Best,

Alessio

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