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Hydrodynamic effects in driven soft matter.

Manoel Manghi1, Xaver Schlagberger2, Yong-Woon Kim3

  • 1Laboratoire de Physique Théorique, IRSAMC, Université Paul Sabatier, 31062, Toulouse, France. manghi@irsamc.ups-tlse.fr.

Soft Matter
|July 19, 2020
PubMed
Summary
This summary is machine-generated.

Soft materials exhibit unique behaviors when elasticity interacts with hydrodynamics. This review explores how this interplay influences polymer orientation, nano-machine propulsion, and polymer brush deformation in flow.

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Area of Science:

  • Soft Matter Physics
  • Hydrodynamics
  • Polymer Physics

Background:

  • Hydrodynamic interactions are crucial in non-equilibrium soft matter systems.
  • Understanding these interactions is key to predicting material behavior under flow.
  • Previous studies often simplified polymers as rigid structures.

Purpose of the Study:

  • To review theoretical and simulation-based studies on soft matter hydrodynamics.
  • To highlight the role of hydrodynamic interactions in specific soft material systems.
  • To elucidate the coupling between elasticity and hydrodynamics in non-equilibrium scenarios.

Main Methods:

  • Review of recent theoretical works.
  • Hydrodynamic Brownian dynamics simulations for dilute systems.
  • Scaling analyses where applicable.

Main Results:

  • Elasticity-hydrodynamic coupling causes sedimenting polymers to orient perpendicular to flow.
  • Bending in rotating elastic rods generates propulsion, acting as a force-rectification device.
  • Shear flow deforms polymer brushes, non-linearly altering hydrodynamic boundary conditions.

Conclusions:

  • The interaction between soft matter elasticity and hydrodynamics leads to novel phenomena.
  • Deformable polymers exhibit distinct behaviors compared to rigid counterparts in hydrodynamic flows.
  • Hydrodynamic simulations provide valuable insights into complex soft material dynamics.