CFD study of flow over parallel ridges with varying height and spacing

Lee Chin Yik; Salim Mohamed Salim; Andy Chan; Cheah Siew Cheong

CFD study of flow over parallel ridges with varying height and spacing

Lee Chin Yik
, Salim Mohamed Salim
, Andy Chan
, Cheah Siew Cheong

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

Abstract

A CFD study is performed for a two-dimensional model to simulate and investigate the turbulent flow interactions between three parallel ridges. Velocity profiles and turbulent kinetic energies are presented to illustrate the effects of varying the ridge height and separation distance. The numerical results are validated against extensive atmospheric wind tunnel data obtained from USEPA. Studies on different mesh configurations and inbuilt Reynolds averaged Navier-Stokes (RANS) turbulence models shows that the standard k-ε model predicts the flow field most accurately in relation to the TKE. General flow patterns involve flow separation in the windward corners and recirculation behind each ridge. An amplification of the velocity and TKE are observed as the ridge height increases, whereas larger separations result in lower velocities and significant variation in
downwind TKE values.

Original language	English
Title of host publication	Proceedings of The World Congress on Engineering 2010
Subtitle of host publication	The 2010 International Conference of Mechanical Engineering
Editors	S.I. Ao, Len Gelman, David WL Hukins, Andrew Hunter, A.M Korsunsky
Publisher	Newswood Limited
Pages	1206-1211
Number of pages	6
Volume	II
ISBN (Print)	9789881821072
Publication status	Published - 30 Jun 2010
Externally published	Yes
Event	World Congress on Engineering 2010 - Imperial College London, London, United Kingdom Duration: 30 Jun 2010 → 2 Jul 2010 https://www.iaeng.org/WCE2010/

Conference

Conference	World Congress on Engineering 2010
Abbreviated title	WCE 2010
Country/Territory	United Kingdom
City	London
Period	30/06/10 → 2/07/10
Internet address	https://www.iaeng.org/WCE2010/

Access to Document

https://www.iaeng.org/publication/WCE2010/

Cite this

Yik, L. C., Salim, S. M., Chan, A., & Cheong, C. S. (2010). CFD study of flow over parallel ridges with varying height and spacing. In S. I. Ao, L. Gelman, D. WL. Hukins, A. Hunter, & A. M. Korsunsky (Eds.), Proceedings of The World Congress on Engineering 2010: The 2010 International Conference of Mechanical Engineering (Vol. II, pp. 1206-1211). Newswood Limited. https://www.iaeng.org/publication/WCE2010/

Yik, Lee Chin ; Salim, Salim Mohamed ; Chan, Andy et al. / CFD study of flow over parallel ridges with varying height and spacing. Proceedings of The World Congress on Engineering 2010: The 2010 International Conference of Mechanical Engineering. editor / S.I. Ao ; Len Gelman ; David WL Hukins ; Andrew Hunter ; A.M Korsunsky. Vol. II Newswood Limited, 2010. pp. 1206-1211

@inproceedings{5f2bd4ef79a64052bb60faa8010cf5e1,

title = "CFD study of flow over parallel ridges with varying height and spacing",

abstract = "A CFD study is performed for a two-dimensional model to simulate and investigate the turbulent flow interactions between three parallel ridges. Velocity profiles and turbulent kinetic energies are presented to illustrate the effects of varying the ridge height and separation distance. The numerical results are validated against extensive atmospheric wind tunnel data obtained from USEPA. Studies on different mesh configurations and inbuilt Reynolds averaged Navier-Stokes (RANS) turbulence models shows that the standard k-ε model predicts the flow field most accurately in relation to the TKE. General flow patterns involve flow separation in the windward corners and recirculation behind each ridge. An amplification of the velocity and TKE are observed as the ridge height increases, whereas larger separations result in lower velocities and significant variation in downwind TKE values. ",

author = "Yik, \{Lee Chin\} and Salim, \{Salim Mohamed\} and Andy Chan and Cheong, \{Cheah Siew\}",

year = "2010",

month = jun,

day = "30",

language = "English",

isbn = "9789881821072",

volume = "II",

pages = "1206--1211",

editor = "S.I. Ao and Len Gelman and Hukins, \{David WL\} and Andrew Hunter and A.M Korsunsky",

booktitle = "Proceedings of The World Congress on Engineering 2010",

publisher = "Newswood Limited",

note = "World Congress on Engineering 2010, WCE 2010 ; Conference date: 30-06-2010 Through 02-07-2010",

url = "https://www.iaeng.org/WCE2010/",

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Yik, LC, Salim, SM, Chan, A & Cheong, CS 2010, CFD study of flow over parallel ridges with varying height and spacing. in SI Ao, L Gelman, DWL Hukins, A Hunter & AM Korsunsky (eds), Proceedings of The World Congress on Engineering 2010: The 2010 International Conference of Mechanical Engineering. vol. II, Newswood Limited, pp. 1206-1211, World Congress on Engineering 2010, London, United Kingdom, 30/06/10. <https://www.iaeng.org/publication/WCE2010/>

CFD study of flow over parallel ridges with varying height and spacing. / Yik, Lee Chin; Salim, Salim Mohamed; Chan, Andy et al.
Proceedings of The World Congress on Engineering 2010: The 2010 International Conference of Mechanical Engineering. ed. / S.I. Ao; Len Gelman; David WL Hukins; Andrew Hunter; A.M Korsunsky. Vol. II Newswood Limited, 2010. p. 1206-1211.

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

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AU - Yik, Lee Chin

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AU - Cheong, Cheah Siew

PY - 2010/6/30

Y1 - 2010/6/30

N2 - A CFD study is performed for a two-dimensional model to simulate and investigate the turbulent flow interactions between three parallel ridges. Velocity profiles and turbulent kinetic energies are presented to illustrate the effects of varying the ridge height and separation distance. The numerical results are validated against extensive atmospheric wind tunnel data obtained from USEPA. Studies on different mesh configurations and inbuilt Reynolds averaged Navier-Stokes (RANS) turbulence models shows that the standard k-ε model predicts the flow field most accurately in relation to the TKE. General flow patterns involve flow separation in the windward corners and recirculation behind each ridge. An amplification of the velocity and TKE are observed as the ridge height increases, whereas larger separations result in lower velocities and significant variation in downwind TKE values.

AB - A CFD study is performed for a two-dimensional model to simulate and investigate the turbulent flow interactions between three parallel ridges. Velocity profiles and turbulent kinetic energies are presented to illustrate the effects of varying the ridge height and separation distance. The numerical results are validated against extensive atmospheric wind tunnel data obtained from USEPA. Studies on different mesh configurations and inbuilt Reynolds averaged Navier-Stokes (RANS) turbulence models shows that the standard k-ε model predicts the flow field most accurately in relation to the TKE. General flow patterns involve flow separation in the windward corners and recirculation behind each ridge. An amplification of the velocity and TKE are observed as the ridge height increases, whereas larger separations result in lower velocities and significant variation in downwind TKE values.

M3 - Conference contribution

SN - 9789881821072

VL - II

SP - 1206

EP - 1211

BT - Proceedings of The World Congress on Engineering 2010

A2 - Ao, S.I.

A2 - Gelman, Len

A2 - Hukins, David WL

A2 - Hunter, Andrew

A2 - Korsunsky, A.M

PB - Newswood Limited

T2 - World Congress on Engineering 2010

Y2 - 30 June 2010 through 2 July 2010

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