Fig. 3. (a and b) Velocity profiles ((a) for Gr = 1.6, (b) for bi = 0.7); other fixed parameters are ε = 0.04, z = 0.57, r1 = 0.02, B = 1.4, λ = 0.04, k = 0.24, s = 0.8, q = 0.56, φ1 = 0.2, φ2 = 0.05.
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