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Elastoinertial chains in a two-dimensional turbulent flow.

Rahul Singh1, Mohit Gupta1,2, Jason R Picardo3

  • 1International Centre for Theoretical Sciences, Tata Institute of Fundamental Research, Bangalore 560089, India.

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This summary is machine-generated.

The study reveals how inertia and elasticity influence filament transport in turbulent flow. Elastic interactions cause bead-spring chains to exhibit complex behaviors, unlike non-interacting particles.

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Area of Science:

  • Fluid dynamics
  • Complex systems

Background:

  • Turbulent flows are ubiquitous in nature and technology.
  • Understanding particle transport in turbulence is crucial for many scientific fields.

Purpose of the Study:

  • To investigate the impact of inertia and elasticity on filamentary object transport in 2D turbulent flow.
  • To analyze the complex behaviors of bead-spring chains due to elastic interactions.

Main Methods:

  • Modeling filamentary objects as bead-spring chains.
  • Simulating transport in a two-dimensional turbulent flow.
  • Quantifying behavior as a function of inertia and elasticity.

Main Results:

  • Elastic interactions lead to nontrivial flow sampling, including vortex entrapment and preferential sampling of straining regions.
  • Bead-spring chain behavior differs significantly from free heavy particles and inertialess chains.
  • Mass distribution critically affects turbulent transport, as shown in heavy-headed and uniformly inertial chain cases.

Conclusions:

  • Inertia and elasticity play a critical role in the turbulent transport of extended objects.
  • The interplay of these forces leads to unique transport phenomena not observed in simpler models.
  • Mass distribution is a key factor determining how extended objects navigate turbulent environments.