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Sketch of the experimental setup.
Velocity profiles for a CTAB in solution at a temperature of measured in the middle of the width of the channel at 1 cm from the inlet in the flow direction. Increasing maximum velocities correspond to increasing pressures drops: (a) 0.4/1/1.4 bars, (b) 1.8/2/2.2/2.4 bars, (c) 2.5/2.7/2.9/3.1 bars, and (d) 3.2/3.4/3.8 bars.
Stress vs shear rate relation obtained from the velocity profiles of Fig. 2 with corresponding symbols and from velocity profiles at intermediary driving pressures (not represented on Fig. 2 for clarity). The insert represents the value of the stress at the interface between the shear bands extracted from the profiles of Figs. 2(b) and 2(c), the line representing the mean of these values.
Slip length vs shear rate at the wall in the shear-banding regime, for driving pressures ranging from 1.8 to 3.2 bars.
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