Viscoelastic flows in simple liquids generated by vibrating nanostructures.

  title={Viscoelastic flows in simple liquids generated by vibrating nanostructures.},
  author={Matthew Pelton and Debadi Chakraborty and Edward W Malachosky and Philippe Guyot-Sionnest and John E. Sader},
  journal={Physical review letters},
  volume={111 24},
Newtonian fluid mechanics, in which the shear stress is proportional to the strain rate, is synonymous with the flow of simple liquids such as water. We report the measurement and theoretical verification of non-Newtonian, viscoelastic flow phenomena produced by the high-frequency (20 GHz) vibration of gold nanoparticles immersed in water-glycerol mixtures. The observed viscoelasticity is not due to molecular confinement, but is a bulk continuum effect arising from the short time scale of… CONTINUE READING
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