908386.fig.006a
(a)
908386.fig.006b
(b)
Figure 6: Profiles of the velocity components 𝑤 ( 𝑟 , 𝑡 ) and 𝑣 ( 𝑟 , 𝑡 ) given by (3.18) and (3.19), for 𝑅 = 3 , 𝑊 1 = 𝑊 2 = 𝑉 1 = 𝑉 2 = 1 , 𝑤 1 = 𝑤 2 = 1 , 𝜌 = 5 9 . 2 8 9 , 𝛼 = 0 . 1 , 𝛽 = 0 . 8 , 𝑡 = 2 . 5 s , and different values of 𝜈 .