Air flow Visualization

This was an experiment with blender’s smoke rendering. I wanted to create a thermal graphic showing Red as fast-moving air and blue as slow drifting air. It was an unexpected challenge to create this and I ended up using a plane and rendering in different scenes and layers. If anyone knows of a more procedural way to create this effect I’d love to know that there is an easier way.
Specifics
Software: Blender 2.78, Gimp 2.0, Sketchbook Pro