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Schematic representation of a nanoparticle in a cylindrical vessel (tube) (not to scale). Diameter of the tube: D=10 μm; length of the tube: L=10 μm; diameter of the nanoparticle: d(500 nm≤d≤1000 nm); viscosity of the fluid: μ=10-3 kg∕ms; density of the fluid and the nanoparticle: ρ(f)=103 kg∕m3 and 990 kg∕m3≤ρ(p)≤1010 kg∕m3. Particle locations away from the center are not displayed in this figure.
