Velocity Induced by a Plane Uniform Vortex Having the Schwarz Function of Its Boundary with Two Simple Poles

Figure 4

As in Figure 3, but for vortices of kind (2,1) (first row, with 𝐚₁=1, 𝐚₂=0.8−0.2𝐢, 𝐳₁=0.65−0.60𝐢, and 𝐳₂=−0.15+0.25𝐢) and of kind (2,2) (second row, with 𝐚₁=1, 𝐚₂=0.8−0.2𝐢, 𝐳₁=0.6−1.1𝐢, and 𝐳₂=−0.1+0.3𝐢).

(a)

(b)

(c)

(d)

(e)

(f)