Detail publikačního výsledku

The effect of turbulence anisotropy on particle deposition in particle-laden channel flow

VOLAVÝ, J.; FORMAN, M.; JÍCHA, M.

Originální 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

Druh

Stať ve sborníku v databázi WoS či Scopus

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.

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

Large Eddy Simulation, channel flow, particles, turbulence anisotropy

Klíčová slova v angličtině

Large Eddy Simulation, channel flow, particles, turbulence anisotropy

Autoři

VOLAVÝ, J.; FORMAN, M.; JÍCHA, M.

Rok RIV

2012

Vydáno

09.05.2011

Nakladatel

Academy of Sciences of the Czech Republic

Místo

Praha

ISBN

978-80-87012-33-8

Kniha

Engineering Mechanics 2011

Edice

1

Strany od

663

Strany do

666

Strany počet

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",
  series="1",
  number="1",
  pages="663--666",
  publisher="Academy of Sciences of the Czech Republic",
  address="Praha",
  isbn="978-80-87012-33-8"
}