NUMERICAL MODELLING of WAVE-INDUCED LIQUEFACTION AROUND PIPELINES and OFFSHORE CABLES

V. S.Ozgur Kirca; S. Utku Yilmaz; B. Mutlu Sumer; Ranjith Khumar Shanmugasundaram; Henrik Rusche; Christian Windt; Nils Goseberg

doi:10.1115/OMAE2022-78537

NUMERICAL MODELLING of WAVE-INDUCED LIQUEFACTION AROUND PIPELINES and OFFSHORE CABLES

V. S.Ozgur Kirca, S. Utku Yilmaz, B. Mutlu Sumer, Ranjith Khumar Shanmugasundaram, Henrik Rusche, Christian Windt, Nils Goseberg

Department of Civil Engineering

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

1 Citation (Scopus)

Abstract

Submarine pipelines and offshore cables are critical infrastructures for the offshore energy industry. Marine structures like pipelines and offshore cables buried in loose finegrained seabed soil, such as silt or fine sand, maybe under the threat of wave-induced liquefaction. Such failures (flotation or sinking of structures due to liquefaction) have been reported widely in the literature. Observations show that the presence of pipelines/cables can enhance the wave-induced liquefaction susceptibility. This paper presents early results of a numerical modeling study in which the liquefaction potential around a pipeline/cable buried in seabed soil is investigated. A numerical model being developed in the OpenFOAM CFD toolbox under the NuLIMAS (Numerical Modelling of Liquefaction Around Marine Structures) Project is utilized. The results show that the model is capable of simulating the pore pressure buildup around pipelines (or cables), both in near or far field. Additionally, it is shown that different wall boundary conditions of pipelines/cables (i.e. smooth or rough) can be modeled in the numerical model, which is a convenient feature of the model for utilization in practical applications.

Original language	English
Title of host publication	Offshore Geotechnics
Publisher	American Society of Mechanical Engineers (ASME)
ISBN (Electronic)	9780791885949
DOIs	https://doi.org/10.1115/OMAE2022-78537
Publication status	Published - 2022
Event	ASME 2022 41st International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2022 - Hamburg, Germany Duration: 5 Jun 2022 → 10 Jun 2022

Publication series

Name	Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE
Volume	9

Conference

Conference	ASME 2022 41st International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2022
Country/Territory	Germany
City	Hamburg
Period	5/06/22 → 10/06/22

Bibliographical note

Publisher Copyright:
© 2022 by ASME.

Funding

This study is supported by the National Centre for Research and Development (Grant MarTERA-2/NuLlMAS/3/2021), Poland. Scientific and Technological Research Council of Turkey (grant No. TEYDEB1509/9190068)

Funders	Funder number
Türkiye Bilimsel ve Teknolojik Araştırma Kurumu	TEYDEB1509/9190068
Narodowe Centrum Badań i Rozwoju	MarTERA-2/NuLlMAS/3/2021

Keywords

Buried pipelines
Offshore cables
Pore-water pressure
Wave-induced liquefaction

Access to Document

10.1115/OMAE2022-78537

Cite this

Kirca, V. S. O., Yilmaz, S. U., Sumer, B. M., Shanmugasundaram, R. K., Rusche, H., Windt, C., & Goseberg, N. (2022). NUMERICAL MODELLING of WAVE-INDUCED LIQUEFACTION AROUND PIPELINES and OFFSHORE CABLES. In Offshore Geotechnics Article V009T10A005 (Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE; Vol. 9). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/OMAE2022-78537

@inproceedings{bfe186f3d7f24b1ab064cb78f541cc0c,

title = "NUMERICAL MODELLING of WAVE-INDUCED LIQUEFACTION AROUND PIPELINES and OFFSHORE CABLES",

abstract = "Submarine pipelines and offshore cables are critical infrastructures for the offshore energy industry. Marine structures like pipelines and offshore cables buried in loose finegrained seabed soil, such as silt or fine sand, maybe under the threat of wave-induced liquefaction. Such failures (flotation or sinking of structures due to liquefaction) have been reported widely in the literature. Observations show that the presence of pipelines/cables can enhance the wave-induced liquefaction susceptibility. This paper presents early results of a numerical modeling study in which the liquefaction potential around a pipeline/cable buried in seabed soil is investigated. A numerical model being developed in the OpenFOAM CFD toolbox under the NuLIMAS (Numerical Modelling of Liquefaction Around Marine Structures) Project is utilized. The results show that the model is capable of simulating the pore pressure buildup around pipelines (or cables), both in near or far field. Additionally, it is shown that different wall boundary conditions of pipelines/cables (i.e. smooth or rough) can be modeled in the numerical model, which is a convenient feature of the model for utilization in practical applications.",

keywords = "Buried pipelines, Offshore cables, Pore-water pressure, Wave-induced liquefaction",

author = "Kirca, {V. S.Ozgur} and Yilmaz, {S. Utku} and Sumer, {B. Mutlu} and Shanmugasundaram, {Ranjith Khumar} and Henrik Rusche and Christian Windt and Nils Goseberg",

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year = "2022",

doi = "10.1115/OMAE2022-78537",

language = "English",

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Kirca, VSO, Yilmaz, SU, Sumer, BM, Shanmugasundaram, RK, Rusche, H, Windt, C & Goseberg, N 2022, NUMERICAL MODELLING of WAVE-INDUCED LIQUEFACTION AROUND PIPELINES and OFFSHORE CABLES. in Offshore Geotechnics., V009T10A005, Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE, vol. 9, American Society of Mechanical Engineers (ASME), ASME 2022 41st International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2022, Hamburg, Germany, 5/06/22. https://doi.org/10.1115/OMAE2022-78537

NUMERICAL MODELLING of WAVE-INDUCED LIQUEFACTION AROUND PIPELINES and OFFSHORE CABLES. / Kirca, V. S.Ozgur; Yilmaz, S. Utku; Sumer, B. Mutlu et al.
Offshore Geotechnics. American Society of Mechanical Engineers (ASME), 2022. V009T10A005 (Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE; Vol. 9).

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

TY - GEN

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AU - Kirca, V. S.Ozgur

AU - Yilmaz, S. Utku

AU - Sumer, B. Mutlu

AU - Shanmugasundaram, Ranjith Khumar

AU - Rusche, Henrik

AU - Windt, Christian

AU - Goseberg, Nils

PY - 2022

Y1 - 2022

N2 - Submarine pipelines and offshore cables are critical infrastructures for the offshore energy industry. Marine structures like pipelines and offshore cables buried in loose finegrained seabed soil, such as silt or fine sand, maybe under the threat of wave-induced liquefaction. Such failures (flotation or sinking of structures due to liquefaction) have been reported widely in the literature. Observations show that the presence of pipelines/cables can enhance the wave-induced liquefaction susceptibility. This paper presents early results of a numerical modeling study in which the liquefaction potential around a pipeline/cable buried in seabed soil is investigated. A numerical model being developed in the OpenFOAM CFD toolbox under the NuLIMAS (Numerical Modelling of Liquefaction Around Marine Structures) Project is utilized. The results show that the model is capable of simulating the pore pressure buildup around pipelines (or cables), both in near or far field. Additionally, it is shown that different wall boundary conditions of pipelines/cables (i.e. smooth or rough) can be modeled in the numerical model, which is a convenient feature of the model for utilization in practical applications.

AB - Submarine pipelines and offshore cables are critical infrastructures for the offshore energy industry. Marine structures like pipelines and offshore cables buried in loose finegrained seabed soil, such as silt or fine sand, maybe under the threat of wave-induced liquefaction. Such failures (flotation or sinking of structures due to liquefaction) have been reported widely in the literature. Observations show that the presence of pipelines/cables can enhance the wave-induced liquefaction susceptibility. This paper presents early results of a numerical modeling study in which the liquefaction potential around a pipeline/cable buried in seabed soil is investigated. A numerical model being developed in the OpenFOAM CFD toolbox under the NuLIMAS (Numerical Modelling of Liquefaction Around Marine Structures) Project is utilized. The results show that the model is capable of simulating the pore pressure buildup around pipelines (or cables), both in near or far field. Additionally, it is shown that different wall boundary conditions of pipelines/cables (i.e. smooth or rough) can be modeled in the numerical model, which is a convenient feature of the model for utilization in practical applications.

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AN - SCOPUS:85141026400

T3 - Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE

BT - Offshore Geotechnics

PB - American Society of Mechanical Engineers (ASME)

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Kirca VSO, Yilmaz SU, Sumer BM, Shanmugasundaram RK, Rusche H, Windt C et al. NUMERICAL MODELLING of WAVE-INDUCED LIQUEFACTION AROUND PIPELINES and OFFSHORE CABLES. In Offshore Geotechnics. American Society of Mechanical Engineers (ASME). 2022. V009T10A005. (Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE). doi: 10.1115/OMAE2022-78537

NUMERICAL MODELLING of WAVE-INDUCED LIQUEFACTION AROUND PIPELINES and OFFSHORE CABLES

Abstract

Publication series

Conference

Bibliographical note

Funding

Keywords

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