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Performance of a two-phase flow solver for the simulation of breaking waves

Performance of a two-phase flow solver for the simulation of breaking waves
Performance of a two-phase flow solver for the simulation of breaking waves
Wave breaking is one of the most violent phenomena observed in air-water interface interactions. This phenomenon commonly occurs in real ship flows and is one of the main sources of underwater noise and white-water wakes. The investigation of this phenomenon is thus important in ship and ocean engineering. The performance of a two-phase flow solver is investigated for a simulation of spilling breaking waves generated by a shallowly submerged hydrofoil (NACA0024) in a uniform flow. An algebraic Volume of Fluid (AVOF) method is applied to capture the dynamic behaviour of the free surface and a standard k - ε turbulence model is selected to capture the turbulent flow around and downstream of the hydrofoil. The wave profiles, pressure and velocity contours are computed to investigate the overall flow conditions and a detailed analysis of the flow field downstream of the hydrofoil is conducted in terms of velocity components and turbulence intensities at six measurement sections. A comparison of the numerical and experimental results shows that an accurate representation of the free surface and the turbulent flow beneath it is obtained with the present numerical scheme. It is expected that the systematic documentation of the performance of the AVOF two-phase solver will enable its more accurate and optimal use for simulating ship-related flows, as well as increase awareness of its potential shortcomings for those interested in general CFD simulation of breaking waves.
Spilling breaking, AVOF, hydrofoil, turbulence
ASME
Jin, Qiu
27d56f4b-3b1f-4bd9-aab7-ebd3331912d1
Hudson, Dominic
3814e08b-1993-4e78-b5a4-2598c40af8e7
Temarel, Pandeli
b641fc50-5c8e-4540-8820-ae6779b4b0cf
Price, W. Geraint
ad1240e3-70e9-46eb-96a1-18506172dd65
Jin, Qiu
27d56f4b-3b1f-4bd9-aab7-ebd3331912d1
Hudson, Dominic
3814e08b-1993-4e78-b5a4-2598c40af8e7
Temarel, Pandeli
b641fc50-5c8e-4540-8820-ae6779b4b0cf
Price, W. Geraint
ad1240e3-70e9-46eb-96a1-18506172dd65

Jin, Qiu, Hudson, Dominic, Temarel, Pandeli and Price, W. Geraint (2019) Performance of a two-phase flow solver for the simulation of breaking waves. In Proceedings of the ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering: OMAE2019. ASME..

Record type: Conference or Workshop Item (Paper)

Abstract

Wave breaking is one of the most violent phenomena observed in air-water interface interactions. This phenomenon commonly occurs in real ship flows and is one of the main sources of underwater noise and white-water wakes. The investigation of this phenomenon is thus important in ship and ocean engineering. The performance of a two-phase flow solver is investigated for a simulation of spilling breaking waves generated by a shallowly submerged hydrofoil (NACA0024) in a uniform flow. An algebraic Volume of Fluid (AVOF) method is applied to capture the dynamic behaviour of the free surface and a standard k - ε turbulence model is selected to capture the turbulent flow around and downstream of the hydrofoil. The wave profiles, pressure and velocity contours are computed to investigate the overall flow conditions and a detailed analysis of the flow field downstream of the hydrofoil is conducted in terms of velocity components and turbulence intensities at six measurement sections. A comparison of the numerical and experimental results shows that an accurate representation of the free surface and the turbulent flow beneath it is obtained with the present numerical scheme. It is expected that the systematic documentation of the performance of the AVOF two-phase solver will enable its more accurate and optimal use for simulating ship-related flows, as well as increase awareness of its potential shortcomings for those interested in general CFD simulation of breaking waves.

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More information

Published date: 9 June 2019
Keywords: Spilling breaking, AVOF, hydrofoil, turbulence

Identifiers

Local EPrints ID: 432876
URI: http://eprints.soton.ac.uk/id/eprint/432876
PURE UUID: 19228b30-aeaf-457d-9183-3504a88be393
ORCID for Dominic Hudson: ORCID iD orcid.org/0000-0002-2012-6255
ORCID for Pandeli Temarel: ORCID iD orcid.org/0000-0003-2921-1242

Catalogue record

Date deposited: 31 Jul 2019 16:30
Last modified: 26 Nov 2021 02:37

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Contributors

Author: Qiu Jin
Author: Dominic Hudson ORCID iD
Author: Pandeli Temarel ORCID iD
Author: W. Geraint Price

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