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Title: Particle dispersion in homogeneous turbulence using the one-dimensional turbulence model

Lagrangian particle dispersion is studied using the one-dimensional turbulence (ODT) model in homogeneous decaying turbulence configurations. The ODT model has been widely and successfully applied to a number of reacting and nonreacting flow configurations, but only limited application has been made to multiphase flows. Here, we present a version of the particle implementation and interaction with the stochastic and instantaneous ODT eddy events. The model is characterized by comparison to experimental data of particle dispersion for a range of intrinsic particle time scales and body forces. Particle dispersion, velocity, and integral time scale results are presented. The particle implementation introduces a single model parameter β{sub p}, and sensitivity to this parameter and behavior of the model are discussed. Good agreement is found with experimental data and the ODT model is able to capture the particle inertial and trajectory crossing effects. These results serve as a validation case of the multiphase implementations of ODT for extensions to other flow configurations.
Authors:
;  [1] ;  [2] ;  [3]
  1. Chemical Engineering Department, Brigham Young University, Provo, Utah 84602 (United States)
  2. Fire Science and Technology Department, Sandia National Laboratories, Albuquerque, New Mexico 87123 (United States)
  3. Department of Mathematics, Texas A and M University, College Station, Texas 77843 (United States)
Publication Date:
OSTI Identifier:
22310804
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Fluids (1994); Journal Volume: 26; Journal Issue: 10; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CONFIGURATION; DISPERSIONS; LAGRANGIAN FUNCTION; MULTIPHASE FLOW; ONE-DIMENSIONAL CALCULATIONS; PARTICLES; STOCHASTIC PROCESSES; TRAJECTORIES; TURBULENCE; VELOCITY