"Grasshopper definition that tries to show some basic ways to use new field components present at GH 0.9.0005. [...] It's not some kind of aerodynamics analysis (be careful using it like that). It's only a charge field with some stream lines and field direction representation." Ángel Linares
Downloadable Rhino and Grasshopper files...
The definition is inspired in the video uploaded by Luis Fraguada: http://www.grasshopper3d.com/video/barcelona-wind-simulation-for-2012-07-27
Via Ignacio López Busón