3D unstable scroll wave simulation using WebGL
The 3d scroll wave is unstable by negative tention and will produce multiple scroll waves and vortex filaments. By changing epsilon to 0.3 or below, the scroll wave leaves this regime and becomes stable.
Horizontal plane hight (min 0, max 30)
plot scroll wave instead of vortex filament.

a b ε dt dx it delay fps
Drag the mouse to rotate the model. Hold shift key or use mouse wheel to zoom it (canvas is matched to the browser window).
FHN model. Tip dynamics on a 128x128x32 grid. For negative tension (epsilon >=0.4 )the vortex filament is unstable, it grows and bends leading to creation of multiple filaments and spatiotemporal chaos.
Heart rhythms     updated 26 Dec 2011