Yielding the yield-stress analysis: a study focused on the effects of elasticity on the settling of a single spherical particle in simple yield-stress fluids.

@article{Fraggedakis2016YieldingTY,
  title={Yielding the yield-stress analysis: a study focused on the effects of elasticity on the settling of a single spherical particle in simple yield-stress fluids.},
  author={Dimitrios Fraggedakis and Yannis Dimakopoulos and John Tsamopoulos},
  journal={Soft matter},
  year={2016},
  volume={12 24},
  pages={
          5378-401
        }
}
The sedimentation of a single particle in materials that exhibit simultaneously elastic, viscous and plastic behavior is examined in an effort to explain phenomena that contradict the nature of purely yield-stress materials. Such phenomena include the loss of the fore-and-aft symmetry with respect to an isolated settling particle under creeping flow conditions and the appearance of the "negative wake" behind it. Despite the fact that similar observations have been reported in studies involving… CONTINUE READING

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