First Problem of Stokes for Generalized Burgers' Fluids

Figure 5

Profiles of the velocity field 𝑢(𝑦,𝑡) and the shear stress and 𝜏(𝑦,𝑡) given by (3.7) and (3.11), for 𝜆₁=5.5,𝜆₃=2,𝜆₄=6,𝑡=2s, and different values of 𝜆₂.

(a)

(b)