Scour-inducing flow around gravity anchors astride pipelines in currents

X. Zhao; Liang Cheng; M. Zhao

doi:10.1201/b17703-95

Scour-inducing flow around gravity anchors astride pipelines in currents

X. Zhao, Liang Cheng, M. Zhao

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

1 Citation (Scopus)

Abstract

© 2015 Taylor & Francis Group, London. 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, ICSE 2014
Place of Publication	United Kingdom
Publisher	CRC Press
Pages	741-751
Volume	N/A
ISBN (Electronic)	9781315723594
ISBN (Print)	9781138027329
DOIs	https://doi.org/10.1201/b17703-95
Publication status	Published - 2015
Event	7th International Conference on Scour and Erosion - Perth, Australia Duration: 2 Dec 2014 → 4 Dec 2014

Conference

Conference	7th International Conference on Scour and Erosion
Country/Territory	Australia
City	Perth
Period	2/12/14 → 4/12/14

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10.1201/b17703-95

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@inproceedings{1870412d66414ec08bd04e792fe0dc45,

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

abstract = "{\textcopyright} 2015 Taylor & Francis Group, London. 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 Liang Cheng and M. Zhao",

year = "2015",

doi = "10.1201/b17703-95",

language = "English",

isbn = "9781138027329",

volume = "N/A",

pages = "741--751",

booktitle = "Scour and Erosion - Proceedings of the 7th International Conference on Scour and Erosion, ICSE 2014",

publisher = "CRC Press",

note = "7th International Conference on Scour and Erosion ; Conference date: 02-12-2014 Through 04-12-2014",

}

Zhao, X, Cheng, L & Zhao, M 2015, Scour-inducing flow around gravity anchors astride pipelines in currents. in Scour and Erosion - Proceedings of the 7th International Conference on Scour and Erosion, ICSE 2014. vol. N/A, CRC Press, United Kingdom, pp. 741-751, 7th International Conference on Scour and Erosion, Perth, Australia, 2/12/14. https://doi.org/10.1201/b17703-95

TY - GEN

T1 - Scour-inducing flow around gravity anchors astride pipelines in currents

AU - Zhao, X.

AU - Cheng, Liang

AU - Zhao, M.

PY - 2015

Y1 - 2015

N2 - © 2015 Taylor & Francis Group, London. 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 - © 2015 Taylor & Francis Group, London. 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.

U2 - 10.1201/b17703-95

DO - 10.1201/b17703-95

M3 - Conference paper

SN - 9781138027329

VL - N/A

SP - 741

EP - 751

BT - Scour and Erosion - Proceedings of the 7th International Conference on Scour and Erosion, ICSE 2014

PB - CRC Press

CY - United Kingdom

T2 - 7th International Conference on Scour and Erosion

Y2 - 2 December 2014 through 4 December 2014

ER -

Scour-inducing flow around gravity anchors astride pipelines in currents

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