A comparison between computational fluid dynamics (CFD) analysis and wind tunnel observations on flow above a complex terrain

Desmond K. K. Hui; Kenny C. S. Kwok; Peter A. Hitchcock; C. H. Fok

A comparison between computational fluid dynamics (CFD) analysis and wind tunnel observations on flow above a complex terrain

Desmond K. K. Hui, Kenny C. S. Kwok, Peter A. Hitchcock, C. H. Fok

Research output: Chapter in Book / Conference Paper › Conference Paper

Abstract

![CDATA[A combined RANS/LES hybrid strategy was developed for flow field simulation to gauge the accuracy against wind tunnel observations. Flow across a hilly terrain was predicted by solving the RANS equations with the k-ε turbulence model of the whole field followed by a detailed LES model covering a smaller extent of interest. Predictions from CFD analyses were compared with observations in a 1:400 scale wind tunnel terrain model whereby mean flow field and turbulence parameters predicted in the RANS solutions were compared directly with the wind tunnel measurements. The information was then used to synthesize the flow fluctuations at the inlet of the detailed model for LES. The analysis results indicated reasonable agreements with wind tunnel measurements on mean flow field and turbulent intensity.]]

Original language	English
Title of host publication	Proceedings of the 4th International Symposium on Computational Wind Engineering (CWE2006), Yokohama, Japan
Publisher	CWE
Number of pages	4
Publication status	Published - 2006
Event	International Symposium on Computational Wind Engineering - Duration: 8 Jun 2014 → …

Conference

Conference	International Symposium on Computational Wind Engineering
Period	8/06/14 → …

Keywords

computational fluid dynamics
wind tunnel testing
wind flow
complex terrains
computer simulation
mathematical models

Cite this

@inproceedings{71ade3639bdd46fbbaf94a629ff8b7ce,

title = "A comparison between computational fluid dynamics (CFD) analysis and wind tunnel observations on flow above a complex terrain",

abstract = "![CDATA[A combined RANS/LES hybrid strategy was developed for flow field simulation to gauge the accuracy against wind tunnel observations. Flow across a hilly terrain was predicted by solving the RANS equations with the k-ε turbulence model of the whole field followed by a detailed LES model covering a smaller extent of interest. Predictions from CFD analyses were compared with observations in a 1:400 scale wind tunnel terrain model whereby mean flow field and turbulence parameters predicted in the RANS solutions were compared directly with the wind tunnel measurements. The information was then used to synthesize the flow fluctuations at the inlet of the detailed model for LES. The analysis results indicated reasonable agreements with wind tunnel measurements on mean flow field and turbulent intensity.]]",

keywords = "computational fluid dynamics, wind tunnel testing, wind flow, complex terrains, computer simulation, mathematical models",

author = "Hui, {Desmond K. K.} and Kwok, {Kenny C. S.} and Hitchcock, {Peter A.} and Fok, {C. H.}",

year = "2006",

language = "English",

booktitle = "Proceedings of the 4th International Symposium on Computational Wind Engineering (CWE2006), Yokohama, Japan",

publisher = "CWE",

note = "International Symposium on Computational Wind Engineering ; Conference date: 08-06-2014",

}

A comparison between computational fluid dynamics (CFD) analysis and wind tunnel observations on flow above a complex terrain. / Hui, Desmond K. K.; Kwok, Kenny C. S.; Hitchcock, Peter A. et al.
Proceedings of the 4th International Symposium on Computational Wind Engineering (CWE2006), Yokohama, Japan. CWE, 2006.

Research output: Chapter in Book / Conference Paper › Conference Paper

TY - GEN

T1 - A comparison between computational fluid dynamics (CFD) analysis and wind tunnel observations on flow above a complex terrain

AU - Hui, Desmond K. K.

AU - Kwok, Kenny C. S.

AU - Hitchcock, Peter A.

AU - Fok, C. H.

PY - 2006

Y1 - 2006

N2 - ![CDATA[A combined RANS/LES hybrid strategy was developed for flow field simulation to gauge the accuracy against wind tunnel observations. Flow across a hilly terrain was predicted by solving the RANS equations with the k-ε turbulence model of the whole field followed by a detailed LES model covering a smaller extent of interest. Predictions from CFD analyses were compared with observations in a 1:400 scale wind tunnel terrain model whereby mean flow field and turbulence parameters predicted in the RANS solutions were compared directly with the wind tunnel measurements. The information was then used to synthesize the flow fluctuations at the inlet of the detailed model for LES. The analysis results indicated reasonable agreements with wind tunnel measurements on mean flow field and turbulent intensity.]]

AB - ![CDATA[A combined RANS/LES hybrid strategy was developed for flow field simulation to gauge the accuracy against wind tunnel observations. Flow across a hilly terrain was predicted by solving the RANS equations with the k-ε turbulence model of the whole field followed by a detailed LES model covering a smaller extent of interest. Predictions from CFD analyses were compared with observations in a 1:400 scale wind tunnel terrain model whereby mean flow field and turbulence parameters predicted in the RANS solutions were compared directly with the wind tunnel measurements. The information was then used to synthesize the flow fluctuations at the inlet of the detailed model for LES. The analysis results indicated reasonable agreements with wind tunnel measurements on mean flow field and turbulent intensity.]]

KW - computational fluid dynamics

KW - wind tunnel testing

KW - wind flow

KW - complex terrains

KW - computer simulation

KW - mathematical models

UR - http://handle.uws.edu.au:8081/1959.7/46064

M3 - Conference Paper

BT - Proceedings of the 4th International Symposium on Computational Wind Engineering (CWE2006), Yokohama, Japan

PB - CWE

T2 - International Symposium on Computational Wind Engineering

Y2 - 8 June 2014

ER -

A comparison between computational fluid dynamics (CFD) analysis and wind tunnel observations on flow above a complex terrain

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Keywords

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