Random walk models for particle displacements in inhomogeneous unsteady turbulent flows

DOI10.1063/1.864956zbMath0611.76073OpenAlexW2075131161MaRDI QIDQ3751256

Han Van Dop, F. T. M. Nieuwstadt, Julian C. R. Hunt

Publication date: 1985

Published in: The Physics of Fluids (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1063/1.864956

zbMATH Keywords

Langevin equation random walk model Fokker- Planck equation second moments convective boundary layer heuristic derivation scales of turbulence analysis of fluid particle kinematics Eulerian conservation equations Eulerian conservation of mass equations inhomogeneous and non- stationary turbulence inhomogeneous unsteady turbulent flow K-diffusion equation local energy dissipation rate statistics of the Lagrangian velocities zero-skewness steady turbulence

Mathematics Subject Classification ID

Sums of independent random variables; random walks (60G50) Diffusion processes (60J60) Turbulence (76F99) Basic methods in fluid mechanics (76M99)

Related Items (19)

On Markov modelling of turbulence ⋮ On the physical accuracy of scalar transport modeling in inhomogeneous turbulence ⋮ On the continuum equations for dispersed particles in nonuniform flows ⋮ A random-flight evaluation of the constants of relative dispersion in idealized turbulence ⋮ Criteria for the selection of stochastic models of particle trajectories in turbulent flows ⋮ Two-particle description of turbulence, Markov property, and intermittency ⋮ A non-Gaussian stochastic model to describe passive tracer dispersion and its comparison to a direct numerical simulation ⋮ A Review of Some Monte Carlo Simulation Methods for Turbulent Systems ⋮ The evaluation of a Lagrangian model for turbulent transport and chemistry ⋮ On a kinetic equation for the transport of particles in turbulent flows ⋮ Nonlinear Lagrangian equations for turbulent motion and buoyancy in inhomogeneous flows ⋮ Stochastic theory of compressible turbulent fluid transport ⋮ Time scales of stratified turbulent flows and relations between second-order closure parameters and flow numbers ⋮ Lagrangian dynamics in high-dimensional point-vortex systems ⋮ Scalar dispersion by a large-eddy simulation and a Lagrangian stochastic subgrid model ⋮ Accelerating convergence in stochastic particle dispersion simulation codes ⋮ An asymptotic analysis of a generalized Langevin equation ⋮ A stochastic model for the motion of particle pairs in isotropic high-Reynolds-number turbulence, and its application to the problem of concentration variance ⋮ Large-eddy simulation and Lagrangian stochastic modeling of passive scalar dispersion in a turbulent boundary layer

Cites Work

This page was built for publication: Random walk models for particle displacements in inhomogeneous unsteady turbulent flows