Publication detail
Turbulence modulation by particles in Large Eddy Simulation of backward-facing step
VOLAVÝ, J. FORMAN, M. JÍCHA, M.
Czech title
Turbulence modulation by particles in Large Eddy Simulation of backward-facing step
English title
Turbulence modulation by particles in Large Eddy Simulation of backward-facing step
Type
journal article - other
Language
en
Original abstract
Large Eddy Simulation of backward-facing step flow laden with particles were performed. The number of particles is chosen very large and the volume fraction of particles is high enough for consideration of two-way coupling. This means that the particles are influenced by fluid and vice versa. The inter-particle collisions are neglected. The Euler-Lagrange method is adopted, which means that the fluid is considered to be continuum (Euler approach) and for each individual particle is solved Lagrangian equation of motion. Particles are considered to be spherical. The simulations are performed for different mass fractions of 0.090 mm glass particles. The results are compared to the single-phase flow in order to investigate the effect of the particles on the turbulence statistics of the carrier phase.
Czech abstract
Large Eddy Simulation of backward-facing step flow laden with particles were performed. The number of particles is chosen very large and the volume fraction of particles is high enough for consideration of two-way coupling. This means that the particles are influenced by fluid and vice versa. The inter-particle collisions are neglected. The Euler-Lagrange method is adopted, which means that the fluid is considered to be continuum (Euler approach) and for each individual particle is solved Lagrangian equation of motion. Particles are considered to be spherical. The simulations are performed for different mass fractions of 0.090 mm glass particles. The results are compared to the single-phase flow in order to investigate the effect of the particles on the turbulence statistics of the carrier phase.
English abstract
Large Eddy Simulation of backward-facing step flow laden with particles were performed. The number of particles is chosen very large and the volume fraction of particles is high enough for consideration of two-way coupling. This means that the particles are influenced by fluid and vice versa. The inter-particle collisions are neglected. The Euler-Lagrange method is adopted, which means that the fluid is considered to be continuum (Euler approach) and for each individual particle is solved Lagrangian equation of motion. Particles are considered to be spherical. The simulations are performed for different mass fractions of 0.090 mm glass particles. The results are compared to the single-phase flow in order to investigate the effect of the particles on the turbulence statistics of the carrier phase.
Keywords in Czech
Large Eddy Simulation, turbulence modulation, particles, backward-facing step
Keywords in English
Large Eddy Simulation, turbulence modulation, particles, backward-facing step
RIV year
2011
Released
22.12.2011
Publisher
IOP Publishing Ltd.
Location
Bristol, United Kingdom
ISSN
1742-6588
Volume
2011
Number
318
Pages from–to
1–7
Pages count
7
BIBTEX
@article{BUT75992,
author="Jaroslav {Volavý} and Matěj {Forman} and Miroslav {Jícha},
title="Turbulence modulation by particles in Large Eddy Simulation of backward-facing step",
year="2011",
volume="2011",
number="318",
month="December",
pages="1--7",
publisher="IOP Publishing Ltd.",
address="Bristol, United Kingdom",
issn="1742-6588"
}