Acoustic propulsion of nano- and microcones: dependence on the viscosity of the surrounding fluid

Abstract

This article investigates how the acoustic propulsion of cone-shaped colloidal particles that are exposed to a traveling ultrasound wave depends on the viscosity of the fluid surrounding the particles. Using acoustofluidic computer simulations, we found that the propulsion of such nano- and microcones decreases strongly and even changes sign for increasing shear viscosity. In contrast, we found only a weak dependence of the propulsion on the bulk viscosity. The obtained results are in line with the findings of previous theoretical and experimental studies.

15 pages, 7 figures

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Cited by in corpus (2)

• Acoustic propulsion of nano- and microcones: dependence on the viscosity of the surrounding fluid
• Propulsion of bullet- and cup-shaped nano- and microparticles by traveling ultrasound waves