Figure 8.

Profiles of the velocity v(r,t) and the shear stress τ(r,t) given by Eqs. (20) and (24), for R1 = 0.3, R2 = 0.6, f = -2, ν = 0.005, μ = 5, λ1 = 9, λ2 = 3, λ4 = 2, t = 20s and different values of λ3.

Jamil and Fetecau Boundary Value Problems 2012 2012:14   doi:10.1186/1687-2770-2012-14
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