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VOLAVÝ, J. FORMAN, M. JÍCHA, M.
Originální název
Large Eddy Simulation: subgrid-scale models
Typ
článek v časopise - ostatní, Jost
Jazyk
angličtina
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.
Klíčová slova
Large Eddy Simulation, subgrid-scale models, channel flow
Autoři
VOLAVÝ, J.; FORMAN, M.; JÍCHA, M.
Rok RIV
2011
Vydáno
1. 11. 2011
Nakladatel
Institute of Thermomechanics AS CR
Místo
Praha
ISSN
0001-7043
Periodikum
Acta Technica ČSAV
Ročník
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" }