Uniform flow around a square cylinder using the Self-induced angular Moment Method turbulence model

Jens Johansson, Mogens Peter Nielsen, Leif Otto Nielsen

Publikation: Bidrag til bog/antologi/rapport/konference-proceedingKonferencebidrag i proceedingsForskning

Resumé

The uniform flow around a square cylinder at Reynolds number 1e5 is simulated in a threedimensional domain by means of the newly developed Self-induced angular Moment Method, SMoM. The model does not utilize Reynolds averaging. No additional transport equations are introduced and no implicit or explicit filtering is performed. The model is, in all its simplicity, a modification of the classical constitutive equations of fluids to which a term is added that accounts for the transfer for angular momentum between parts of the fluid.The time-mean and fluctuating force coefficients, pressure distributions and velocity fields have been determined along with circumferential surface pressure correlations. All simulated quantities have been compared to experimental findings and state-of-the-art Large Eddy Simulations, LES. No LES simulations could be found in literature, which provided results at the same level of accuracy for all the reported parameters. Hence, the SMoM turbulence model is found to provide an alternative to the Large Eddy Simulations.
OriginalsprogEngelsk
TitelThe 2012 World Congress on Advances in Civil, Environmental, and Materials Research : Volume of Abstracts with full texts of papers on a CD-ROM
Udgivelses stedKorea
Publikationsdatoaug. 2012
Sider3033-3047
ISBN (Trykt)978-89-89693-35-5 98530
StatusUdgivet - aug. 2012
BegivenhedThe 2012 Int’l Conference on Advances in Wind and Structures - COEX, Seoul, Sydkorea
Varighed: 26. aug. 201229. aug. 2012

Konference

KonferenceThe 2012 Int’l Conference on Advances in Wind and Structures
LokationCOEX
LandSydkorea
BySeoul
Periode26/08/201229/08/2012

Fingeraftryk

uniform flow
turbulence models
large eddy simulation
Reynolds averaging
moments
fluids
constitutive equations
pressure distribution
Reynolds number
angular momentum
velocity distribution
coefficients
simulation

Citer dette

Johansson, J., Nielsen, M. P., & Nielsen, L. O. (2012). Uniform flow around a square cylinder using the Self-induced angular Moment Method turbulence model. I The 2012 World Congress on Advances in Civil, Environmental, and Materials Research: Volume of Abstracts with full texts of papers on a CD-ROM (s. 3033-3047). Korea.
Johansson, Jens ; Nielsen, Mogens Peter ; Nielsen, Leif Otto. / Uniform flow around a square cylinder using the Self-induced angular Moment Method turbulence model. The 2012 World Congress on Advances in Civil, Environmental, and Materials Research: Volume of Abstracts with full texts of papers on a CD-ROM. Korea, 2012. s. 3033-3047
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title = "Uniform flow around a square cylinder using the Self-induced angular Moment Method turbulence model",
abstract = "The uniform flow around a square cylinder at Reynolds number 1e5 is simulated in a threedimensional domain by means of the newly developed Self-induced angular Moment Method, SMoM. The model does not utilize Reynolds averaging. No additional transport equations are introduced and no implicit or explicit filtering is performed. The model is, in all its simplicity, a modification of the classical constitutive equations of fluids to which a term is added that accounts for the transfer for angular momentum between parts of the fluid.The time-mean and fluctuating force coefficients, pressure distributions and velocity fields have been determined along with circumferential surface pressure correlations. All simulated quantities have been compared to experimental findings and state-of-the-art Large Eddy Simulations, LES. No LES simulations could be found in literature, which provided results at the same level of accuracy for all the reported parameters. Hence, the SMoM turbulence model is found to provide an alternative to the Large Eddy Simulations.",
keywords = "wind loads, Computational Wind Engineering, SMoM turbulence model, Square cylinder",
author = "Jens Johansson and Nielsen, {Mogens Peter} and Nielsen, {Leif Otto}",
year = "2012",
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Johansson, J, Nielsen, MP & Nielsen, LO 2012, Uniform flow around a square cylinder using the Self-induced angular Moment Method turbulence model. i The 2012 World Congress on Advances in Civil, Environmental, and Materials Research: Volume of Abstracts with full texts of papers on a CD-ROM. Korea, s. 3033-3047, The 2012 Int’l Conference on Advances in Wind and Structures, Seoul, Sydkorea, 26/08/2012.

Uniform flow around a square cylinder using the Self-induced angular Moment Method turbulence model. / Johansson, Jens; Nielsen, Mogens Peter; Nielsen, Leif Otto.

The 2012 World Congress on Advances in Civil, Environmental, and Materials Research: Volume of Abstracts with full texts of papers on a CD-ROM. Korea, 2012. s. 3033-3047.

Publikation: Bidrag til bog/antologi/rapport/konference-proceedingKonferencebidrag i proceedingsForskning

TY - GEN

T1 - Uniform flow around a square cylinder using the Self-induced angular Moment Method turbulence model

AU - Johansson, Jens

AU - Nielsen, Mogens Peter

AU - Nielsen, Leif Otto

PY - 2012/8

Y1 - 2012/8

N2 - The uniform flow around a square cylinder at Reynolds number 1e5 is simulated in a threedimensional domain by means of the newly developed Self-induced angular Moment Method, SMoM. The model does not utilize Reynolds averaging. No additional transport equations are introduced and no implicit or explicit filtering is performed. The model is, in all its simplicity, a modification of the classical constitutive equations of fluids to which a term is added that accounts for the transfer for angular momentum between parts of the fluid.The time-mean and fluctuating force coefficients, pressure distributions and velocity fields have been determined along with circumferential surface pressure correlations. All simulated quantities have been compared to experimental findings and state-of-the-art Large Eddy Simulations, LES. No LES simulations could be found in literature, which provided results at the same level of accuracy for all the reported parameters. Hence, the SMoM turbulence model is found to provide an alternative to the Large Eddy Simulations.

AB - The uniform flow around a square cylinder at Reynolds number 1e5 is simulated in a threedimensional domain by means of the newly developed Self-induced angular Moment Method, SMoM. The model does not utilize Reynolds averaging. No additional transport equations are introduced and no implicit or explicit filtering is performed. The model is, in all its simplicity, a modification of the classical constitutive equations of fluids to which a term is added that accounts for the transfer for angular momentum between parts of the fluid.The time-mean and fluctuating force coefficients, pressure distributions and velocity fields have been determined along with circumferential surface pressure correlations. All simulated quantities have been compared to experimental findings and state-of-the-art Large Eddy Simulations, LES. No LES simulations could be found in literature, which provided results at the same level of accuracy for all the reported parameters. Hence, the SMoM turbulence model is found to provide an alternative to the Large Eddy Simulations.

KW - wind loads

KW - Computational Wind Engineering

KW - SMoM turbulence model

KW - Square cylinder

M3 - Article in proceedings

SN - 978-89-89693-35-5 98530

SP - 3033

EP - 3047

BT - The 2012 World Congress on Advances in Civil, Environmental, and Materials Research

CY - Korea

ER -

Johansson J, Nielsen MP, Nielsen LO. Uniform flow around a square cylinder using the Self-induced angular Moment Method turbulence model. I The 2012 World Congress on Advances in Civil, Environmental, and Materials Research: Volume of Abstracts with full texts of papers on a CD-ROM. Korea. 2012. s. 3033-3047