Single inertial particle statistics in turbulent flows from Lagrangian velocity models

@article{Friedrich2022SingleIP,
  title={Single inertial particle statistics in turbulent flows from Lagrangian velocity models},
  author={Jan Friedrich and Bianca Viggiano and Micka{\"e}l Bourgoin and Ra{\'u}l Bayo{\'a}n Cal and Laurent Chevillard},
  journal={Physical Review Fluids},
  year={2022}
}
Jan Friedrich, 2 Bianca Viggiano, 3 Mickael Bourgoin, Raúl Bayoán Cal, 2 and Laurent Chevillard Institute of Physics and For Wind, University of Oldenburg, 26129 Oldenburg, Germany Univ. Lyon, ENS de Lyon, Univ. Claude Bernard, CNRS, Laboratoire de Physique, F-69342, Lyon, France Department of Mechanical and Materials Engineering, Portland State University, Portland, Oregon, USA (Dated: June 15, 2021) 

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References

SHOWING 1-10 OF 41 REFERENCES
Statistics of Lagrangian velocities in turbulent flows.
TLDR
This work presents a generalized Fokker-Planck equation for the joint position-velocity probability distribution of a single fluid particle in a turbulent flow and yields a velocity increment probability distribution with normal scaling v approximately t(1/2).
Lagrangian velocity statistics in turbulent flows: effects of dissipation.
TLDR
A quantitative understanding of the departure from scaling exhibited by the magnitude cumulants, early in the inertial range, is obtained with a free parameter function D(h) which plays the role of the singularity spectrum in the asymptotic limit of infinite Reynolds number.
Dynamics and statistics of heavy particles in turbulent flows
We present the results of direct numerical simulations (DNS) of turbulent flows seeded with millions of passive inertial particles. The maximum Reynolds number is Re λ∼ 200. We consider particles
Acceleration statistics of inertial particles in turbulent flow
Turbulent transport of material inclusions plays an important role in many natural and industrial situations. Being able to accurately model and predict the dynamics of dispersed particles
Lagrangian Properties of Particles in Turbulence
The Lagrangian description of turbulence is characterized by a unique conceptual simplicity and by an immediate connection with the physics of dispersion and mixing. In this article, we report some
Inertial range Eulerian and Lagrangian statistics from numerical simulations of isotropic turbulence
We present a study of Eulerian and Lagrangian statistics from a high-resolution numerical simulation of isotropic and homogeneous turbulence using the FLASH code, with an estimated Taylor microscale
Reynolds number effects in Lagrangian stochastic models of turbulent dispersion
A second‐order autoregressive equation is used to model the acceleration of fluid particles in turbulence in order to study the effect of Reynolds number on Lagrangian turbulence statistics. It is
Dynamics of heavy particles in a Burgers vortex
This paper presents a linear stability analysis as well as some numerical results for the motion of heavy particles in the flow field of a Burgers vortex, under the combined effects of particle
Dynamics of small heavy particles in homogeneous turbulence: a Lagrangian experimental study
Abstract We investigate the behaviour of microscopic heavy particles settling in homogeneous air turbulence. The regimes are relevant to the airborne transport of dust and droplets: the
Lagrangian measurements of inertial particle accelerations in grid generated wind tunnel turbulence.
TLDR
Lagrangian measurements of water droplets in grid generated wind tunnel turbulence at a Taylor Reynolds number of R(lambda)=250 and an average Stokes number (St) of approximately 0.1 show that the inertial particles selectively sample the fluid field and are less likely to experience regions of the fluid undergoing the largest accelerations.
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