Excitation Waves on Cylindrical Surfaces: Rotor Competition and Vortex Drift
نویسنده
چکیده
An experimental technique for preparation and image reconstruction of excitation waves in cylindrical Belousov-Zhabotinsky media is developed. It is found that pairs of spiral rotors generate ring-shaped waves by wave collisions which occur approximately 180± behind the pacemakers. Numerical simulations reveal radius-dependent competition between common vortices and rotating planar waves. This master/slave dynamics can give rise to a topology-induced spiral drift along helical loopy lines which is not due to meandering or curvature-induced changes in wave velocity. [S0031-9007(96)02162-X]
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تاریخ انتشار 1999