• Corpus ID: 118901381

Velocity-vorticity correlation and turbulent diffusivity in buoyancy driven fluid dynamics

@article{Bershadskii2019VelocityvorticityCA,
  title={Velocity-vorticity correlation and turbulent diffusivity in buoyancy driven fluid dynamics},
  author={Alexander Bershadskii},
  journal={arXiv: Fluid Dynamics},
  year={2019}
}
The velocity-vorticity correlation integral (Chkhetiani invariant) is an invariant of a viscous Karman-Howarth equation. In the tree-dimensional space this invariant can naturally determine a turbulent diffusivity (viscosity). It is shown, using results of direct numerical simulations, that distributed chaos dominated by this integral can provide an adequate description of the turbulent Rayleigh-Benard convection, stably stratified turbulence and Rayleigh-Taylor mixing at Prandtl number $Pr… 

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References

SHOWING 1-8 OF 8 REFERENCES

240

Phys

  • Rev. B, 74, 184430
  • 2006

Phys

  • Rev. E, 90, 023016
  • 2014

Turbulence in rotating

  • stratified and electrically conducting fluids.
  • 2013

Phys

  • Lett. A, 375, 1010
  • 2011

Phys

  • Rev. E., 98, 043109
  • 2018

Statistical Fluid Mechanics

  • Vol. II: Mechanics of Turbulence
  • 2007

Phys

  • Fluids 20, 085103
  • 2008