Detail publikačního výsledku

Large Eddy Simulation: subgrid-scale models

VOLAVÝ, J.; FORMAN, M.; JÍCHA, M.

Originální název

Large Eddy Simulation: subgrid-scale models

Anglický název

Large Eddy Simulation: subgrid-scale models

Druh

Článek recenzovaný mimo WoS a Scopus

Originální abstrakt

Subgrid modelling in Large Eddy Simulation is proposed and analysed. The main idea of Large Eddy Simulation is to separate the eddies containing large energy from small dissipative eddies (scales). The large eddies are solved explicitly, the small ones are modelled. For modelling of these smallest scales so called subgrid-scale models are used. The paper contains a short description of the most used subgrid-scale models, particularly Smagorinsky model, dynamic Smagorinsky model, subgrid kinetic energy model, dynamic subgrid kinetic energy model and mixed model. These models are consequently tested on the case of a turbulent channel flow. The calculations are performed using an open-source code OpenFOAM. The results are compared with the DNS data.

Anglický abstrakt

Subgrid modelling in Large Eddy Simulation is proposed and analysed. The main idea of Large Eddy Simulation is to separate the eddies containing large energy from small dissipative eddies (scales). The large eddies are solved explicitly, the small ones are modelled. For modelling of these smallest scales so called subgrid-scale models are used. The paper contains a short description of the most used subgrid-scale models, particularly Smagorinsky model, dynamic Smagorinsky model, subgrid kinetic energy model, dynamic subgrid kinetic energy model and mixed model. These models are consequently tested on the case of a turbulent channel flow. The calculations are performed using an open-source code OpenFOAM. The results are compared with the DNS data.

Klíčová slova

Large Eddy Simulation, subgrid-scale models, channel flow

Klíčová slova v angličtině

Large Eddy Simulation, subgrid-scale models, channel flow

Autoři

VOLAVÝ, J.; FORMAN, M.; JÍCHA, M.

Rok RIV

2012

Vydáno

01.11.2011

Nakladatel

Institute of Thermomechanics AS CR

Místo

Praha

ISSN

0001-7043

Periodikum

Acta Technica ČSAV

Svazek

2011

Číslo

3

Stát

Česká republika

Strany od

271

Strany do

280

Strany počet

10

BibTex

@article{BUT75172,
  author="Jaroslav {Volavý} and Matěj {Forman} and Miroslav {Jícha}",
  title="Large Eddy Simulation: subgrid-scale models",
  journal="Acta Technica ČSAV",
  year="2011",
  volume="2011",
  number="3",
  pages="271--280",
  issn="0001-7043"
}