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Numerical analysis of wall shear patterns on the external wall of an API 5L X42 natural gas pipe

Natural gas pipeline is designed and constructed according to stringent international codes and standards, thus it hardly to rupture or leaks. However, erosive water jet from leaked water pipeline is able to erode the pipe surfaces and lead to its failure. Due to complications in understanding the s...

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Main Authors: Mohsin, R., Majid, Z. A., Tan, F. L.
Format: Article
Published: Elsevier Ltd. 2015
Subjects:
TP Chemical technology
Online Access:http://eprints.utm.my/id/eprint/58668/
http://dx.doi.org/10.1016/j.engfailanal.2014.09.012
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spelling my.utm.586682021-10-24T08:51:50Z http://eprints.utm.my/id/eprint/58668/ Numerical analysis of wall shear patterns on the external wall of an API 5L X42 natural gas pipe Mohsin, R. Majid, Z. A. Tan, F. L. TP Chemical technology Natural gas pipeline is designed and constructed according to stringent international codes and standards, thus it hardly to rupture or leaks. However, erosive water jet from leaked water pipeline is able to erode the pipe surfaces and lead to its failure. Due to complications in understanding the subsurface hydrodynamics of buried pipe condition, Computational Fluid Dynamics (CFD) is commonly used to predict its characteristics to provide multifaceted overview of the erosion phenomenon. In this study, CFD simulation of multiple water leakage surface of 0.05. m diameter at 9. atm water pipeline pressure was performed with separation distance of 0.05. m, using standard k-epsilon model (SKE) of turbulent model. Simulation results were obtained using discrete random walk to determine the instantaneous fluid velocity. It was found that different region of water shear and sand shear on natural gas pipelines was formed due to the strikes of erosive slurry at different angles. The CFD simulation results showed that sand was the primary cause of the natural gas pipe wall shear, causing cutting and deformation region on the surface of gas pipe. The erosion pattern of the three ruptured holes from the incident sites had a similar trend with those from simulated CFD results of water jetting source at angles of 45°, 60°, and 75°. Elsevier Ltd. 2015 Article PeerReviewed Mohsin, R. and Majid, Z. A. and Tan, F. L. (2015) Numerical analysis of wall shear patterns on the external wall of an API 5L X42 natural gas pipe. Engineering Failure Alysis, 48 . pp. 30-40. ISSN 1350-6307 http://dx.doi.org/10.1016/j.engfailanal.2014.09.012 DOI: 10.1016/j.engfailanal.2014.09.012
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TP Chemical technology
spellingShingle TP Chemical technology
Mohsin, R.
Majid, Z. A.
Tan, F. L.
Numerical analysis of wall shear patterns on the external wall of an API 5L X42 natural gas pipe
description Natural gas pipeline is designed and constructed according to stringent international codes and standards, thus it hardly to rupture or leaks. However, erosive water jet from leaked water pipeline is able to erode the pipe surfaces and lead to its failure. Due to complications in understanding the subsurface hydrodynamics of buried pipe condition, Computational Fluid Dynamics (CFD) is commonly used to predict its characteristics to provide multifaceted overview of the erosion phenomenon. In this study, CFD simulation of multiple water leakage surface of 0.05. m diameter at 9. atm water pipeline pressure was performed with separation distance of 0.05. m, using standard k-epsilon model (SKE) of turbulent model. Simulation results were obtained using discrete random walk to determine the instantaneous fluid velocity. It was found that different region of water shear and sand shear on natural gas pipelines was formed due to the strikes of erosive slurry at different angles. The CFD simulation results showed that sand was the primary cause of the natural gas pipe wall shear, causing cutting and deformation region on the surface of gas pipe. The erosion pattern of the three ruptured holes from the incident sites had a similar trend with those from simulated CFD results of water jetting source at angles of 45°, 60°, and 75°.
format Article
author Mohsin, R.
Majid, Z. A.
Tan, F. L.
author_facet Mohsin, R.
Majid, Z. A.
Tan, F. L.
author_sort Mohsin, R.
title Numerical analysis of wall shear patterns on the external wall of an API 5L X42 natural gas pipe
title_short Numerical analysis of wall shear patterns on the external wall of an API 5L X42 natural gas pipe
title_full Numerical analysis of wall shear patterns on the external wall of an API 5L X42 natural gas pipe
title_fullStr Numerical analysis of wall shear patterns on the external wall of an API 5L X42 natural gas pipe
title_full_unstemmed Numerical analysis of wall shear patterns on the external wall of an API 5L X42 natural gas pipe
title_sort numerical analysis of wall shear patterns on the external wall of an api 5l x42 natural gas pipe
publisher Elsevier Ltd.
publishDate 2015
url http://eprints.utm.my/id/eprint/58668/
http://dx.doi.org/10.1016/j.engfailanal.2014.09.012
_version_ 1715189645250134016
score 13.211869

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