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. 2012 Feb 15;9(71):1398–1408. doi: 10.1098/rsif.2011.0868

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Figure 2. — (a) The ratio of average fluid velocity over average particle velocity for a no-slip wall below the vesicles. (b) Partial slip at the bottom wall, corresponding to a layer of lower viscosity and of thickness 220 nm (or 0.55 LU) close to the wall, can explain the high fluid velocities observed in experiments. Viscosity ratio is η_II/η_I = 50 and particle surface coverage ϕ = 0.1, with the distance between actin bundles being Δy = 5 LU corresponding to 2 µm. The height of the cytoplasm is H_cyto = 25 LU = 10 µm. (Online version in colour.)

Inline graphic — (a) The ratio of average fluid velocity over average particle velocity for a no-slip wall below the vesicles. (b) Partial slip at the bottom wall, corresponding to a layer of lower viscosity and of thickness 220 nm (or 0.55 LU) close to the wall, can explain the high fluid velocities observed in experiments. Viscosity ratio is η_II/η_I = 50 and particle surface coverage ϕ = 0.1, with the distance between actin bundles being Δy = 5 LU corresponding to 2 µm. The height of the cytoplasm is H_cyto = 25 LU = 10 µm. (Online version in colour.)