Fig. 4.

Simulations of Eq. (25) with kinetics given by (44) using parameters S2. We plot the final distribution of u on a the static domain, b a domain with linear isotropic growth over the timescale $T_g=T^{\ast }/2=2500$, c a domain with linear isotropic growth over the timescale $T_g=10T^{\ast }=50,000$, and d staged growth over the timescale $T_g+T_g=2\times 10T^{\ast }=100,000$ (Color figure online)