Improved Lagrangian mixing models for passive scalars in isotropic turbulence

DOI10.1063/1.1545472zbMath1186.76176OpenAlexW2078186621MaRDI QIDQ3556416

P. K. Yeung, Rodney O. Fox

Publication date: 22 April 2010

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

Full work available at URL: https://lib.dr.iastate.edu/cbe_pubs/98

zbMATH Keywords

diffusionFokker-Planck equationstochastic processesfluctuationsdifferential equationsturbulenceflow simulation

Mathematics Subject Classification ID

Fluid mechanics (76-XX)

Related Items (8)

Cumulant expansion technique for the pdf formulation of turbulent combustion ⋮ Stochastic shell model for turbulent mixing of multiple scalars with mean gradients and differential diffusion ⋮ Determination of the coefficients of Langevin models for inhomogeneous turbulent flows by three-dimensional particle tracking velocimetry and direct numerical simulation ⋮ A multienvironment conditional probability density function model for turbulent reacting flows ⋮ Numerical study and Lagrangian modelling of turbulent heat transport ⋮ A mixing model for turbulent flows based on parameterized scalar profiles ⋮ Micromixing models for turbulent flows ⋮ Analytical assessment of models for large eddy simulation of particle laden flow

Cites Work

• Lagrangian characteristics of turbulence and scalar transport in direct numerical simulations
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• Lagrangian statistics in uniform shear flow: Direct numerical simulation and Lagrangian stochastic models
• Modeling extinction and reignition in turbulent nonpremixed combustion using a doubly-conditional moment closure approach
• Coagulation-induced particle-concentration fluctuations in homogeneous, isotropic turbulence
• The Kolmogorov constant for the Lagrangian velocity spectrum and structure function
• A binomial Langevin model for turbulent mixing
• The spectral relaxation model of the scalar dissipation rate in homogeneous turbulence
• A DNS study of turbulent mixing of two passive scalars
• On velocity-conditioned scalar mixing in homogeneous turbulence
• Direct numerical simulation of a passive scalar with imposed mean gradient in isotropic turbulence
• An experimental investigation of the relative diffusion of particle pairs in three-dimensional turbulent flow
• Random-sweeping hypothesis for passive scalars in isotropic turbulence
• Improved Fokker–Planck model for the joint scalar, scalar gradient PDF
• One-dimensional turbulence: model formulation and application to homogeneous turbulence, shear flows, and buoyant stratified flows
• The Lagrangian spectral relaxation model of the scalar dissipation in homogeneous turbulence
• Wall-function treatment in pdf methods for turbulent flows

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