Effect of grid-filter width definition on implicitly filtered large eddy simulations using OpenFOAM

A. Beechook; H. Medina; H. Fadhila; S. Aleksandrova; S. Benjamin

doi:10.1063/1.4992186

Effect of grid-filter width definition on implicitly filtered large eddy simulations using OpenFOAM

A. Beechook, H. Medina, H. Fadhila, S. Aleksandrova, S. Benjamin

College of Engineering, Environment & Science

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding › peer-review

2 Citations (Scopus)

Abstract

Turbulent flow over a 3D backward-facing step at a step-height Reynolds number, Reh, of 5100 is simulated in OpenFOAM using Large Eddy Simulation (LES) to investigate how the definition of the grid-filter width, Δ, influences the computed solutions. As part of this study, two different Δ definitions are tested: Δ=ΔxΔyΔz3 and Δ = max(Δx, Δy, Δz). The LES results show good agreement when compared with DNS and experimental data. The simulation results are used to further evaluate the effect of grid non-uniformity on the computation of the subgrid-scale eddy viscosity, ν_SGS.

Original language	English
Title of host publication	International Conference of Numerical Analysis and Applied Mathematics, ICNAAM 2016
Publisher	American Institute of Physics Inc.
Volume	1863
ISBN (Electronic)	9780735415386
DOIs	https://doi.org/10.1063/1.4992186
Publication status	Published - 21 Jul 2017
Event	International Conference of Numerical Analysis and Applied Mathematics 2016 - Rhodes, Greece Duration: 19 Sept 2016 → 25 Sept 2016

Conference

Conference	International Conference of Numerical Analysis and Applied Mathematics 2016
Abbreviated title	ICNAAM 2016
Country/Territory	Greece
City	Rhodes
Period	19/09/16 → 25/09/16

Keywords

backward-facing step
grid-filter width
implicit filter
Large Eddy Simulation
OpenFOAM

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1063/1.4992186

Cite this

Effect of grid-filter width definition on implicitly filtered large eddy simulations using OpenFOAM. / Beechook, A.; Medina, H.; Fadhila, H. et al.
International Conference of Numerical Analysis and Applied Mathematics, ICNAAM 2016. Vol. 1863 American Institute of Physics Inc., 2017. 030033.

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding › peer-review

Beechook, A, Medina, H, Fadhila, H, Aleksandrova, S & Benjamin, S 2017, Effect of grid-filter width definition on implicitly filtered large eddy simulations using OpenFOAM. in International Conference of Numerical Analysis and Applied Mathematics, ICNAAM 2016. vol. 1863, 030033, American Institute of Physics Inc., International Conference of Numerical Analysis and Applied Mathematics 2016, Rhodes, Greece, 19/09/16. https://doi.org/10.1063/1.4992186

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title = "Effect of grid-filter width definition on implicitly filtered large eddy simulations using OpenFOAM",

abstract = "Turbulent flow over a 3D backward-facing step at a step-height Reynolds number, Reh, of 5100 is simulated in OpenFOAM using Large Eddy Simulation (LES) to investigate how the definition of the grid-filter width, Δ, influences the computed solutions. As part of this study, two different Δ definitions are tested: Δ=ΔxΔyΔz3 and Δ = max(Δx, Δy, Δz). The LES results show good agreement when compared with DNS and experimental data. The simulation results are used to further evaluate the effect of grid non-uniformity on the computation of the subgrid-scale eddy viscosity, νSGS.",

keywords = "backward-facing step, grid-filter width, implicit filter, Large Eddy Simulation, OpenFOAM",

author = "A. Beechook and H. Medina and H. Fadhila and S. Aleksandrova and S. Benjamin",

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doi = "10.1063/1.4992186",

language = "English",

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publisher = "American Institute of Physics Inc.",

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note = "International Conference of Numerical Analysis and Applied Mathematics 2016, ICNAAM 2016 ; Conference date: 19-09-2016 Through 25-09-2016",

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TY - GEN

T1 - Effect of grid-filter width definition on implicitly filtered large eddy simulations using OpenFOAM

AU - Beechook, A.

AU - Medina, H.

AU - Fadhila, H.

AU - Aleksandrova, S.

AU - Benjamin, S.

PY - 2017/7/21

Y1 - 2017/7/21

N2 - Turbulent flow over a 3D backward-facing step at a step-height Reynolds number, Reh, of 5100 is simulated in OpenFOAM using Large Eddy Simulation (LES) to investigate how the definition of the grid-filter width, Δ, influences the computed solutions. As part of this study, two different Δ definitions are tested: Δ=ΔxΔyΔz3 and Δ = max(Δx, Δy, Δz). The LES results show good agreement when compared with DNS and experimental data. The simulation results are used to further evaluate the effect of grid non-uniformity on the computation of the subgrid-scale eddy viscosity, νSGS.

AB - Turbulent flow over a 3D backward-facing step at a step-height Reynolds number, Reh, of 5100 is simulated in OpenFOAM using Large Eddy Simulation (LES) to investigate how the definition of the grid-filter width, Δ, influences the computed solutions. As part of this study, two different Δ definitions are tested: Δ=ΔxΔyΔz3 and Δ = max(Δx, Δy, Δz). The LES results show good agreement when compared with DNS and experimental data. The simulation results are used to further evaluate the effect of grid non-uniformity on the computation of the subgrid-scale eddy viscosity, νSGS.

KW - backward-facing step

KW - grid-filter width

KW - implicit filter

KW - Large Eddy Simulation

KW - OpenFOAM

U2 - 10.1063/1.4992186

DO - 10.1063/1.4992186

M3 - Conference proceeding

AN - SCOPUS:85026730208

VL - 1863

BT - International Conference of Numerical Analysis and Applied Mathematics, ICNAAM 2016

PB - American Institute of Physics Inc.

T2 - International Conference of Numerical Analysis and Applied Mathematics 2016

Y2 - 19 September 2016 through 25 September 2016

ER -

Effect of grid-filter width definition on implicitly filtered large eddy simulations using OpenFOAM

Abstract

Conference

Keywords

ASJC Scopus subject areas

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Cite this