[Gmsh] GMSH and buildings-wind interaction

[Kubicek Bernhard]

Ansa (http://www.beta-cae.gr/ansa.htm)  is a great tool for creating windflow-meshes around buildings.
90% of Workload is fixing Autocad mistakes, object simplification, and stuff like that. 
Gmsh is not really designed for that.

However, for simple models, gmsh is superior, as the learning curve is much better.
Also, if you have a good cluster and want to trade of computation time from manual time, spider is an option:
http://www.meshing.at/Spiderhome/Home.html
it does automatic geometry simplification, but can currently only handle one air volume . Meshes are not that cute, but hey, more coffee-time...

We do building flows on a regular basis, meshsizes of 20 million cells, with an enviromental radius of up to 1000m including all neighboring buildings...

-----------------------------------
Bernhard Kubicek
Energy Department
Electric Energy Systems

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________________________________________
From: gmsh-bounces at ace20.montefiore.ulg.ac.be [gmsh-bounces at ace20.montefiore.ulg.ac.be] On Behalf Of Antonella Grassano [leli95 at hotmail.com]
Sent: Thursday, February 11, 2010 2:53 AM
To: gmsh at geuz.org
Subject: [Gmsh] GMSH and buildings-wind interaction

Hello,
I would like to know if gmsh is suitable to model the wind flow around a building? Does it have a limit on the number of cell? What file format can be imported?
Many thanks
Best Regards
Antonella

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