Detail publikace
The effect of turbulence anisotropy on particle deposition in particle-laden channel flow
VOLAVÝ, J. FORMAN, M. JÍCHA, M.
Český název
The effect of turbulence anisotropy on particle deposition in particle-laden channel flow
Anglický název
The effect of turbulence anisotropy on particle deposition in particle-laden channel flow
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
en
Originální abstrakt
This work contains the study of turbulent particle-laden channel flow, in which the particles experience a drag force. The method used for simulation of the liquid phase was Large Eddy Simulation using approximate deconvolution method as a subgrid model. For tracking the dispersed phase were used Lagrangian equations of motion. The effect of turbulence anisotropy on motion of particles is obtained by adding the stochastic term into particle equation of motion. This term is proportional to the turbulent kinetic energy of each velocity component. The simulations were performed for various sizes of particles. The results are compared with the previous studies of LES particle-laden flows and DNS simulation. The anisotropic model proposed in this work shows improvement in prediction of turbulent statistics of particles and concentration of particles close to the wall.
Český abstrakt
This work contains the study of turbulent particle-laden channel flow, in which the particles experience a drag force. The method used for simulation of the liquid phase was Large Eddy Simulation using approximate deconvolution method as a subgrid model. For tracking the dispersed phase were used Lagrangian equations of motion. The effect of turbulence anisotropy on motion of particles is obtained by adding the stochastic term into particle equation of motion. This term is proportional to the turbulent kinetic energy of each velocity component. The simulations were performed for various sizes of particles. The results are compared with the previous studies of LES particle-laden flows and DNS simulation. The anisotropic model proposed in this work shows improvement in prediction of turbulent statistics of particles and concentration of particles close to the wall.
Anglický abstrakt
This work contains the study of turbulent particle-laden channel flow, in which the particles experience a drag force. The method used for simulation of the liquid phase was Large Eddy Simulation using approximate deconvolution method as a subgrid model. For tracking the dispersed phase were used Lagrangian equations of motion. The effect of turbulence anisotropy on motion of particles is obtained by adding the stochastic term into particle equation of motion. This term is proportional to the turbulent kinetic energy of each velocity component. The simulations were performed for various sizes of particles. The results are compared with the previous studies of LES particle-laden flows and DNS simulation. The anisotropic model proposed in this work shows improvement in prediction of turbulent statistics of particles and concentration of particles close to the wall.
Klíčová slova česky
Large Eddy Simulation, channel flow, particles, turbulence anisotropy
Klíčová slova anglicky
Large Eddy Simulation, channel flow, particles, turbulence anisotropy
Rok RIV
2011
Vydáno
09.05.2011
Nakladatel
Academy of Sciences of the Czech Republic
Místo
Praha
ISBN
978-80-87012-33-8
Kniha
Engineering Mechanics 2011
Číslo edice
1
Strany od–do
663–666
Počet stran
4
BIBTEX
@inproceedings{BUT74075,
author="Jaroslav {Volavý} and Matěj {Forman} and Miroslav {Jícha},
title="The effect of turbulence anisotropy on particle deposition in particle-laden channel flow",
booktitle="Engineering Mechanics 2011",
year="2011",
month="May",
pages="663--666",
publisher="Academy of Sciences of the Czech Republic",
address="Praha",
isbn="978-80-87012-33-8"
}