Pattern Formation in a Bacterial Colony Model

Figure 3

The process of formation of spiral pattern for 𝑢 for (𝛽,𝛾)=(0.55,0.44); the other parameters are fixed as in (46). Times: (a) 𝑡=0, (b) 𝑡=100, (c) 𝑡=500, and (d) 𝑡=2000.

(a)

(b)

(c)

(d)