Scour-inducing flow around gravity anchors astride pipelines in currents

X. Zhao; L. Cheng; M. Zhao

doi:10.1201/b17703-95

Scour-inducing flow around gravity anchors astride pipelines in currents

X. Zhao, L. Cheng, M. Zhao

School of Engineering, Design & Built Environment

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

1 Citation (Scopus)

Abstract

This study simulated steady currents travelling past gravity anchors astride pipelines wallmounted on an immobile bed. Three-dimensional governing equations were solved with a Petrov-Galerkin finite element method. Three cases were modeled with 90, 45 and 0 degree angles of attack respectively at a constant pipe Reynolds number of 103. Bed shear stress amplification patterns were first revealed and found to be in good agreement with onset scour profiles from physical modeling. Then the responsible scour-inducing flow features were visualized comprising horseshoe vortices, lee-wake vortices and streamline deflections.

Original language	English
Title of host publication	Scour and Erosion: Proceedings of the 7th International Conference on Scour and Erosion, The University of Western Australia, Perth, Australia, 2-4 December 2014
Publisher	CRC Press
Pages	741-751
Number of pages	11
ISBN (Print)	9781138027329
DOIs	https://doi.org/10.1201/b17703-95
Publication status	Published - 2014
Event	International Conference on Scour and Erosion - Duration: 2 Dec 2014 → …

Conference

Conference	International Conference on Scour and Erosion
Period	2/12/14 → …

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10.1201/b17703-95

Cite this

@inproceedings{c1ec2d6f1e494a1a8382b3baff0f1671,

title = "Scour-inducing flow around gravity anchors astride pipelines in currents",

abstract = "This study simulated steady currents travelling past gravity anchors astride pipelines wallmounted on an immobile bed. Three-dimensional governing equations were solved with a Petrov-Galerkin finite element method. Three cases were modeled with 90, 45 and 0 degree angles of attack respectively at a constant pipe Reynolds number of 103. Bed shear stress amplification patterns were first revealed and found to be in good agreement with onset scour profiles from physical modeling. Then the responsible scour-inducing flow features were visualized comprising horseshoe vortices, lee-wake vortices and streamline deflections.",

author = "X. Zhao and L. Cheng and M. Zhao",

year = "2014",

doi = "10.1201/b17703-95",

language = "English",

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pages = "741--751",

booktitle = "Scour and Erosion: Proceedings of the 7th International Conference on Scour and Erosion, The University of Western Australia, Perth, Australia, 2-4 December 2014",

publisher = "CRC Press",

note = "International Conference on Scour and Erosion ; Conference date: 02-12-2014",

}

Zhao, X, Cheng, L & Zhao, M 2014, Scour-inducing flow around gravity anchors astride pipelines in currents. in Scour and Erosion: Proceedings of the 7th International Conference on Scour and Erosion, The University of Western Australia, Perth, Australia, 2-4 December 2014. CRC Press, pp. 741-751, International Conference on Scour and Erosion, 2/12/14. https://doi.org/10.1201/b17703-95

Scour-inducing flow around gravity anchors astride pipelines in currents. / Zhao, X.; Cheng, L.; Zhao, M.
Scour and Erosion: Proceedings of the 7th International Conference on Scour and Erosion, The University of Western Australia, Perth, Australia, 2-4 December 2014. CRC Press, 2014. p. 741-751.

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

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AU - Zhao, X.

AU - Cheng, L.

AU - Zhao, M.

PY - 2014

Y1 - 2014

N2 - This study simulated steady currents travelling past gravity anchors astride pipelines wallmounted on an immobile bed. Three-dimensional governing equations were solved with a Petrov-Galerkin finite element method. Three cases were modeled with 90, 45 and 0 degree angles of attack respectively at a constant pipe Reynolds number of 103. Bed shear stress amplification patterns were first revealed and found to be in good agreement with onset scour profiles from physical modeling. Then the responsible scour-inducing flow features were visualized comprising horseshoe vortices, lee-wake vortices and streamline deflections.

AB - This study simulated steady currents travelling past gravity anchors astride pipelines wallmounted on an immobile bed. Three-dimensional governing equations were solved with a Petrov-Galerkin finite element method. Three cases were modeled with 90, 45 and 0 degree angles of attack respectively at a constant pipe Reynolds number of 103. Bed shear stress amplification patterns were first revealed and found to be in good agreement with onset scour profiles from physical modeling. Then the responsible scour-inducing flow features were visualized comprising horseshoe vortices, lee-wake vortices and streamline deflections.

UR - http://handle.uws.edu.au:8081/1959.7/564169

UR - http://2014icse.com/

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DO - 10.1201/b17703-95

M3 - Conference Paper

SN - 9781138027329

SP - 741

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BT - Scour and Erosion: Proceedings of the 7th International Conference on Scour and Erosion, The University of Western Australia, Perth, Australia, 2-4 December 2014

PB - CRC Press

T2 - International Conference on Scour and Erosion

Y2 - 2 December 2014

ER -

Scour-inducing flow around gravity anchors astride pipelines in currents

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