A Numerical Study on Stratified Shear Layers With Relevance to Oil-Boom Failure
Interface dynamics of two-phase flow, with relevance for leakage of oil retained by mechanical oil barriers, is studied by means of a 2D lattice-Boltzmann method combined with a phase-field model for interface capturing. A Multi-Relaxation-Time (MRT) model of the collision process is used to obtain...
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American Society of Mechanical Engineers (ASME)
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Online Access: | http://hdl.handle.net/11250/2490282 https://doi.org/10.1115/OMAE2014-23981 |
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ftntnutrondheimi:oai:ntnuopen.ntnu.no:11250/2490282 2023-05-15T14:23:49+02:00 A Numerical Study on Stratified Shear Layers With Relevance to Oil-Boom Failure Kristiansen, David Faltinsen, Odd Magnus 2014 http://hdl.handle.net/11250/2490282 https://doi.org/10.1115/OMAE2014-23981 eng eng American Society of Mechanical Engineers (ASME) 33rd International Conference on Ocean, Offshore and Arctic Engineering Volume 8B: Ocean Engineering Norges forskningsråd: 223254 urn:isbn:978-0-7918-4551-6 http://hdl.handle.net/11250/2490282 https://doi.org/10.1115/OMAE2014-23981 cristin:1177958 Chapter 2014 ftntnutrondheimi https://doi.org/10.1115/OMAE2014-23981 2019-09-17T06:53:19Z Interface dynamics of two-phase flow, with relevance for leakage of oil retained by mechanical oil barriers, is studied by means of a 2D lattice-Boltzmann method combined with a phase-field model for interface capturing. A Multi-Relaxation-Time (MRT) model of the collision process is used to obtain a numerically stable model at high Reynolds-number flow. In the phase-field model, the interface is given a finite but small thickness where the fluid properties vary continuosly across a thin interface layer. Surface tension is modelled as a volume force in the transition layer. The numerical model is implemented for simulations with the graphic processing unit (GPU) of a desktop PC. Verification tests of the model are presented. The model is then applied to simulate gravity currents (GC) obtained from a lock-exchange configuration, using fluid parameters relevant for those of oil and water. Interface instability phenomena are observed, and obtained numerical results are in good agreement with theory. This work demonstrates that the numerical model presented can be used as a numerical tool for studies of stratified shear flows with relevance to oil-boom failure. publishedVersion (c) 2014 by ASME Book Part Arctic NTNU Open Archive (Norwegian University of Science and Technology) Volume 8B: Ocean Engineering |
institution |
Open Polar |
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NTNU Open Archive (Norwegian University of Science and Technology) |
op_collection_id |
ftntnutrondheimi |
language |
English |
description |
Interface dynamics of two-phase flow, with relevance for leakage of oil retained by mechanical oil barriers, is studied by means of a 2D lattice-Boltzmann method combined with a phase-field model for interface capturing. A Multi-Relaxation-Time (MRT) model of the collision process is used to obtain a numerically stable model at high Reynolds-number flow. In the phase-field model, the interface is given a finite but small thickness where the fluid properties vary continuosly across a thin interface layer. Surface tension is modelled as a volume force in the transition layer. The numerical model is implemented for simulations with the graphic processing unit (GPU) of a desktop PC. Verification tests of the model are presented. The model is then applied to simulate gravity currents (GC) obtained from a lock-exchange configuration, using fluid parameters relevant for those of oil and water. Interface instability phenomena are observed, and obtained numerical results are in good agreement with theory. This work demonstrates that the numerical model presented can be used as a numerical tool for studies of stratified shear flows with relevance to oil-boom failure. publishedVersion (c) 2014 by ASME |
format |
Book Part |
author |
Kristiansen, David Faltinsen, Odd Magnus |
spellingShingle |
Kristiansen, David Faltinsen, Odd Magnus A Numerical Study on Stratified Shear Layers With Relevance to Oil-Boom Failure |
author_facet |
Kristiansen, David Faltinsen, Odd Magnus |
author_sort |
Kristiansen, David |
title |
A Numerical Study on Stratified Shear Layers With Relevance to Oil-Boom Failure |
title_short |
A Numerical Study on Stratified Shear Layers With Relevance to Oil-Boom Failure |
title_full |
A Numerical Study on Stratified Shear Layers With Relevance to Oil-Boom Failure |
title_fullStr |
A Numerical Study on Stratified Shear Layers With Relevance to Oil-Boom Failure |
title_full_unstemmed |
A Numerical Study on Stratified Shear Layers With Relevance to Oil-Boom Failure |
title_sort |
numerical study on stratified shear layers with relevance to oil-boom failure |
publisher |
American Society of Mechanical Engineers (ASME) |
publishDate |
2014 |
url |
http://hdl.handle.net/11250/2490282 https://doi.org/10.1115/OMAE2014-23981 |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
33rd International Conference on Ocean, Offshore and Arctic Engineering Volume 8B: Ocean Engineering Norges forskningsråd: 223254 urn:isbn:978-0-7918-4551-6 http://hdl.handle.net/11250/2490282 https://doi.org/10.1115/OMAE2014-23981 cristin:1177958 |
op_doi |
https://doi.org/10.1115/OMAE2014-23981 |
container_title |
Volume 8B: Ocean Engineering |
_version_ |
1766296296199553024 |