402017.fig.0016a
(a)
402017.fig.0016b
(b)
Figure 16: Initial configuration transformation when 𝜃 0 ∈ [ 0 , 𝜋 ] and 𝑦 𝑇 < 𝑦 0 . (a) 𝜃 0 ∈ [ 0 , 𝜋 / 2 ) , red line indicates that 𝜃 0 = 0 and (b) 𝜃 0 ∈ ( 𝜋 / 2 , 𝜋 ] , red line indicates that 𝜃 0 = ± 𝜋 .