dc.contributor.author |
Oxtoby, Oliver F
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|
dc.contributor.author |
Malan, AG
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|
dc.contributor.author |
Heyns, Johan A
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|
dc.date.accessioned |
2015-12-18T12:51:18Z |
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dc.date.available |
2015-12-18T12:51:18Z |
|
dc.date.issued |
2015-10 |
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dc.identifier.citation |
Oxtoby, OF, Malan, AG and Heyns, JA. 2015. A computationally efficient 3D finite-volume scheme for violent liquid–gas sloshing, 19pp. |
en_US |
dc.identifier.issn |
0271-2091 |
|
dc.identifier.uri |
http://hdl.handle.net/10204/8339
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|
dc.description |
Copyright: 2015 Wiley. This is the pre-print version of the work. The definitive version is published in the International Journal for Numerical Methods in Fluids, Vol. 79(6), pp 306–321 |
en_US |
dc.description.abstract |
We describe a semi-implicit volume-of-fluid free-surface-modelling methodology for flow problems involving violent free-surface motion. For efficient computation, a hybrid-unstructured edge-based vertex-centred finite volume discretisation is employed, while the solution methodology is entirely matrix free. Pressures are solved using a matrix-free preconditioned generalised minimum residual algorithm and explicit time-stepping is employed for the momentum and interface-tracking equations. The high resolution artificial compressive (HiRAC) volume-of-fluid method is used for accurate capturing of the free surface in violent flow regimes while allowing natural applicability to hybrid-unstructured meshes. The code is parallelised for solution on distributed-memory architectures and evaluated against 2D and 3D benchmark problems. Good parallel scaling is demonstrated, with almost linear speed-up down to 6000 cells per core. Finally, the code is applied to an industrial-type problem involving resonant excitation of a fuel tank, and a comparison with experimental results is made in this violent sloshing regime. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
Wiley |
en_US |
dc.relation.ispartofseries |
Worklist;15265 |
|
dc.subject |
Finite volume method |
en_US |
dc.subject |
Free-surface modelling |
en_US |
dc.subject |
Volume of fluid method |
en_US |
dc.subject |
Sloshing |
en_US |
dc.subject |
Surface capturing |
en_US |
dc.subject |
Matrix free |
en_US |
dc.subject |
Parallel computing |
en_US |
dc.title |
A computationally efficient 3D finite-volume scheme for violent liquid–gas sloshing |
en_US |
dc.type |
Article |
en_US |
dc.identifier.apacitation |
Oxtoby, O. F., Malan, A., & Heyns, J. A. (2015). A computationally efficient 3D finite-volume scheme for violent liquid–gas sloshing. http://hdl.handle.net/10204/8339 |
en_ZA |
dc.identifier.chicagocitation |
Oxtoby, Oliver F, AG Malan, and Johan A Heyns "A computationally efficient 3D finite-volume scheme for violent liquid–gas sloshing." (2015) http://hdl.handle.net/10204/8339 |
en_ZA |
dc.identifier.vancouvercitation |
Oxtoby OF, Malan A, Heyns JA. A computationally efficient 3D finite-volume scheme for violent liquid–gas sloshing. 2015; http://hdl.handle.net/10204/8339. |
en_ZA |
dc.identifier.ris |
TY - Article
AU - Oxtoby, Oliver F
AU - Malan, AG
AU - Heyns, Johan A
AB - We describe a semi-implicit volume-of-fluid free-surface-modelling methodology for flow problems involving violent free-surface motion. For efficient computation, a hybrid-unstructured edge-based vertex-centred finite volume discretisation is employed, while the solution methodology is entirely matrix free. Pressures are solved using a matrix-free preconditioned generalised minimum residual algorithm and explicit time-stepping is employed for the momentum and interface-tracking equations. The high resolution artificial compressive (HiRAC) volume-of-fluid method is used for accurate capturing of the free surface in violent flow regimes while allowing natural applicability to hybrid-unstructured meshes. The code is parallelised for solution on distributed-memory architectures and evaluated against 2D and 3D benchmark problems. Good parallel scaling is demonstrated, with almost linear speed-up down to 6000 cells per core. Finally, the code is applied to an industrial-type problem involving resonant excitation of a fuel tank, and a comparison with experimental results is made in this violent sloshing regime.
DA - 2015-10
DB - ResearchSpace
DP - CSIR
KW - Finite volume method
KW - Free-surface modelling
KW - Volume of fluid method
KW - Sloshing
KW - Surface capturing
KW - Matrix free
KW - Parallel computing
LK - https://researchspace.csir.co.za
PY - 2015
SM - 0271-2091
T1 - A computationally efficient 3D finite-volume scheme for violent liquid–gas sloshing
TI - A computationally efficient 3D finite-volume scheme for violent liquid–gas sloshing
UR - http://hdl.handle.net/10204/8339
ER -
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en_ZA |