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Related Experiment Video

Updated: May 30, 2026

Visually Based Characterization of the Incipient Particle Motion in Regular Substrates: From Laminar to Turbulent Conditions
11:51

Visually Based Characterization of the Incipient Particle Motion in Regular Substrates: From Laminar to Turbulent Conditions

Published on: February 22, 2018

Shell model for quasi-two-dimensional turbulence.

G Boffetta1, F De Lillo, S Musacchio

  • 1Dipartimento di Fisica Generale and INFN, Università di Torino, via P Giuria 1, I-10125 Torino, Italy.

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|July 30, 2011
PubMed
Summary
This summary is machine-generated.

This study introduces geometrical constraints into shell models of turbulence to accurately simulate fluid dynamics in large aspect ratio layers. The new model captures the split energy cascade and scaling properties of turbulent convection.

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Last Updated: May 30, 2026

Visually Based Characterization of the Incipient Particle Motion in Regular Substrates: From Laminar to Turbulent Conditions
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Investigating the Three-dimensional Flow Separation Induced by a Model Vocal Fold Polyp
09:58

Investigating the Three-dimensional Flow Separation Induced by a Model Vocal Fold Polyp

Published on: February 3, 2014

Area of Science:

  • Fluid dynamics
  • Turbulence modeling
  • Computational physics

Background:

  • Turbulent flows in fluid layers with large aspect ratios exhibit complex dynamics.
  • Existing shell models may not fully capture phenomena influenced by geometrical constraints.
  • Understanding energy cascades and scaling properties is crucial for turbulence research.

Purpose of the Study:

  • To develop a shell model of turbulence incorporating geometrical constraints.
  • To accurately mimic turbulent dynamics in large aspect ratio fluid layers.
  • To investigate the split energy cascade and scaling properties in confined turbulent convection.

Main Methods:

  • Introduction of geometrical constraints into shell models.
  • Utilizing a scale-dependent set of coupling parameters.
  • Resolving flow scales both larger and smaller than a geometrical dimension.

Main Results:

  • The proposed model accurately resolves the split energy cascade phenomenon.
  • High-accuracy resolution of both large and small scales relative to geometrical dimensions.
  • Successful investigation of scaling properties in narrow convective cells.

Conclusions:

  • Geometrical constraints are effective in mimicking turbulent dynamics in large aspect ratio fluid layers.
  • The developed model provides high accuracy for studying phenomena like the split energy cascade.
  • This approach enables detailed investigation of turbulent convection in confined geometries.