I'm going to analyze wind flow in an urban area and the results of the velocity field are important. Envi-met looks good in thermal analysis and temperature measurement but minimizes the level of detail of buildings (which I do not know how much it affects the results). UrbaWind is another option I'm familiar with. Do you have any idea about it?
What about Ansys? Envi-met has the ability to get geometry from Google Maps, but I think importing geometry to Ansys could be difficult.