A three-dimensional visualization of the flow field in a simulated wind-farm. The blue regions indicate low velocity wind-regions. These low velocity wind-regions, which are known as wind-turbine wakes, are found behind the turbines. Visualization made by David Bock (XSEDE - Extreme Science and Engineering Discovery Environment- http://lantern.ncsa.illinois.edu/~dbock/Resume/index.html). More info: R.J.A.M.