Detail publikačního výsledku

Large Eddy Simulation of backward facing step

VOLAVÝ, J.; JÍCHA, M.

Originální název

Large Eddy Simulation of backward facing step

Anglický název

Large Eddy Simulation of backward facing step

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

Large Eddy Simulations of backward facing step were performed. One of the difficulties of Large Eddy Simulation is correct representation of the turbulence on the inlet to the region. Therefore the simulations were done using different approaches to the inlet boundary condition. The impact of the choice of inlet boundary condition treatment on the fluid flow is consequently studied. It has shown, that using uniform velocity profile on inlet and even prescribing turbulent mean velocity profile without proper representation of turbulence fluctuations leads to unrealistic results. The only approach used in this work which gives sufficiently accurate solution is direct mapping of velocity from plane positioned behind the inlet back to the inlet.

Anglický abstrakt

Large Eddy Simulations of backward facing step were performed. One of the difficulties of Large Eddy Simulation is correct representation of the turbulence on the inlet to the region. Therefore the simulations were done using different approaches to the inlet boundary condition. The impact of the choice of inlet boundary condition treatment on the fluid flow is consequently studied. It has shown, that using uniform velocity profile on inlet and even prescribing turbulent mean velocity profile without proper representation of turbulence fluctuations leads to unrealistic results. The only approach used in this work which gives sufficiently accurate solution is direct mapping of velocity from plane positioned behind the inlet back to the inlet.

Klíčová slova

Large Eddy Simulation, inlet boundary condition

Klíčová slova v angličtině

Large Eddy Simulation, inlet boundary condition

Autoři

VOLAVÝ, J.; JÍCHA, M.

Rok RIV

2012

Vydáno

22.06.2011

Nakladatel

Technikcá univerzita v Liberci

Místo

Liberec

ISBN

978-80-7372-747-5

Kniha

30, Setkání kateder mechaniky tekutin a termomechaniky

Edice

1

Strany od

269

Strany do

272

Strany počet

4

BibTex

@inproceedings{BUT74076,
  author="Jaroslav {Volavý} and Miroslav {Jícha}",
  title="Large Eddy Simulation of backward facing step",
  booktitle="30, Setkání kateder mechaniky tekutin a termomechaniky",
  year="2011",
  series="1",
  number="1",
  pages="269--272",
  publisher="Technikcá univerzita v Liberci",
  address="Liberec",
  isbn="978-80-7372-747-5"
}