Eddy-viscous modeling and the topology of extreme circulation events in three-dimensional turbulence

@article{Apolinario2022EddyviscousMA,
  title={Eddy-viscous modeling and the topology of extreme circulation events in three-dimensional turbulence},
  author={Gabriel B. Apolin'ario and L. Moriconi and Rodrigo M. Pereira and V. J. Valad{\~a}o},
  journal={Physics Letters A},
  year={2022}
}

Figures from this paper

References

SHOWING 1-10 OF 36 REFERENCES

Stochastic averaging, large deviations and random transitions for the dynamics of 2D and geostrophic turbulent vortices

Geophysical turbulent flows are characterized by their self-organization into large scale coherent structures, in particular parallel jets. We will present a theory in order to describe the effective

The instanton method and its numerical implementation in fluid mechanics

A precise characterization of structures occurring in turbulent fluid flows at high Reynolds numbers is one of the last open problems of classical physics. In this review we discuss recent

Instantons and fluctuations in a Lagrangian model of turbulence

A dynamic subgrid‐scale eddy viscosity model

One major drawback of the eddy viscosity subgrid‐scale stress models used in large‐eddy simulations is their inability to represent correctly with a single universal constant different turbulent

Instantons in a Lagrangian model of turbulence

The role of instantons is investigated in the Lagrangian model for the velocity gradient evolution known as the recent fluid deformation approximation. After recasting the model into the

Vortex clustering, polarisation and circulation intermittency in classical and quantum turbulence

This work links the spatial distribution of vortices in quantum turbulence to the coarse-grained energy dissipation in classical turbulence, enabling the application of existent models of classical turbulence intermittency to the quantum case.

Dissipation, enstrophy and pressure statistics in turbulence simulations at high Reynolds numbers

Abstract We use data from well-resolved direct numerical simulations at Taylor-scale Reynolds numbers from 140 to 1000 to study the statistics of energy dissipation rate and enstrophy density (i.e.

Relevance of instantons in Burgers turbulence

Instanton calculations are performed in the context of stationary Burgers turbulence to estimate the tails of the probability density function (PDF) of velocity gradients. These results are then

Decay of Isotropic Turbulence in the Direct‐Interaction Approximation

The direct‐interaction equations for the decay of isotropic turbulence are integrated numerically with initial spectra of several shapes and initial values of Rλ ≲ 40. Results are presented for the

A closure for Lagrangian velocity gradient evolution in turbulence using recent-deformation mapping of initially Gaussian fields

The statistics of the velocity gradient tensor in turbulent flows is of both theoretical and practical importance. The Lagrangian view provides a privileged perspective for studying the dynamics of