Abstract
A model for the velocity of a wave front having a free edge and moving in an excitable medium is proposed. It contains three main ingredients: a curvature effect, a normal velocity profile effect at a free edge, and a finite width effect. The model allows one to study the process in which arbitrary initial conditions evolve into rotating spiral waves. Two new scaling laws, for the time to form a spiral's core and for the distance between the cores of a mirror image pair of rotating spiral waves, are numerically derived.
| Original language | English |
|---|---|
| Pages (from-to) | 1880-1883 |
| Number of pages | 4 |
| Journal | Physical Review Letters |
| Volume | 60 |
| Issue number | 18 |
| DOIs | |
| State | Published - 1 Jan 1988 |
| Externally published | Yes |
ASJC Scopus subject areas
- General Physics and Astronomy