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.
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Drag the mouse to rotate the model.
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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 rhythmsupdated 26 Dec 2011