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Figure 4 | Nanoscale Research Letters

Figure 4

From: Stability and rheology of dilute TiO2-water nanofluids

Figure 4

Scheme of a shear flow with the AWS effect. Dotted line - actual non-linear velocity profile observed at the constant shear stress σ due to the effect of a depletion layer of dispersion at the wall; Broken solid line - approximation of the actual velocity profile, introduced by the concept of AWS [18]. U = γh + 2u - macroscopic sliding velocity, m s-1; h - gap thickness, m; u - AWS velocity, m s-1; γ - bulk shear rate, s-1.

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