Figure 16. (Color online) Suppressing spiral turbulence in the 2D TNNP model in the presence of an inhomogeneity: A control pulse of amplitude 27.75 µA/cm2 is applied for t = 20 ms on a mesh as in Fig. 13.
The square obstacle is at (54 mm, 22.5 mm) and has side l = 22.5 mm. Without control the spiral turbulence persists as in Fig. 6. The pseudocolor plots of V in (A) 0 ms, (B) 24 ms, (C) 80 ms, and (D) 280 ms, after the initiation of the control, show the suppression of the spiral turbulence.