Fig. 14
From: Oscillatory interactions of two spheres in an unbounded couple stress fluid

Contours of stream function \(\bar{\eta }=0.1,\bar{\eta }'=0.1, U_2/U_1=1.0, \alpha =2, t=10\) , (a) \(\alpha =2.0\), (b) \(\alpha =10.0\).
From: Oscillatory interactions of two spheres in an unbounded couple stress fluid

Contours of stream function \(\bar{\eta }=0.1,\bar{\eta }'=0.1, U_2/U_1=1.0, \alpha =2, t=10\) , (a) \(\alpha =2.0\), (b) \(\alpha =10.0\).