Fig. 6

Velocity profiles for different values of \(U_0\) with \(t = 1.0\), \(Gr = 5.0\), \(\omega = \pi /3\) (cosine), \(\omega = \pi /2\) (sine) and \(\Pr = 0.71\). a Primary velocity. b Secondary velocity
Velocity profiles for different values of \(U_0\) with \(t = 1.0\), \(Gr = 5.0\), \(\omega = \pi /3\) (cosine), \(\omega = \pi /2\) (sine) and \(\Pr = 0.71\). a Primary velocity. b Secondary velocity