Intercomparison of Three Open-Source Numerical Flumes for the Surface Dynamics of Steep Focused Wave Groups
NewWave-type focused wave groups are commonly used to simulate the design wave for a given sea state. These extreme wave events are challenging to reproduce numerically by the various Numerical Wave Tanks (NWTs), due to the high steepness of the wave group and the occurring wave-wave interactions. F...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-12-01
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| Series: | Fluids |
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| Online Access: | https://www.mdpi.com/2311-5521/6/1/9 |
| _version_ | 1797543197070589952 |
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| author | Thomas Vyzikas Dimitris Stagonas Christophe Maisondieu Deborah Greaves |
| author_facet | Thomas Vyzikas Dimitris Stagonas Christophe Maisondieu Deborah Greaves |
| author_sort | Thomas Vyzikas |
| collection | DOAJ |
| description | NewWave-type focused wave groups are commonly used to simulate the design wave for a given sea state. These extreme wave events are challenging to reproduce numerically by the various Numerical Wave Tanks (NWTs), due to the high steepness of the wave group and the occurring wave-wave interactions. For such complex problems, the validation of NWTs against experimental results is vital for confirming the applicability of the models. Intercomparisons among different solvers are also important for selecting the most appropriate model in terms of balancing between accuracy and computational cost. The present study compares three open-source NWTs in OpenFOAM, SWASH and HOS-NWT, with experimental results for limiting breaking focused wave groups. The comparison is performed by analysing the propagation of steep wave groups and their extracted harmonics after employing an accurate focusing methodology. The scope is to investigate the capabilities of the solvers for simulating extreme NewWave-type groups, which can be used as the “design wave” for ocean and coastal engineering applications. The results demonstrate the very good performance of the numerical models and provide valuable insights to the design of the NWTs, while highlighting potential limitations in the reproduction of specific harmonics of the wave group. |
| first_indexed | 2024-03-10T13:41:12Z |
| format | Article |
| id | doaj.art-f98fe014bfec4bea859fe24b0c57a3c3 |
| institution | Directory Open Access Journal |
| issn | 2311-5521 |
| language | English |
| last_indexed | 2024-03-10T13:41:12Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Fluids |
| spelling | doaj.art-f98fe014bfec4bea859fe24b0c57a3c32023-11-21T03:02:47ZengMDPI AGFluids2311-55212020-12-0161910.3390/fluids6010009Intercomparison of Three Open-Source Numerical Flumes for the Surface Dynamics of Steep Focused Wave GroupsThomas Vyzikas0Dimitris Stagonas1Christophe Maisondieu2Deborah Greaves3School of Engineering, Computing and Mathematics, University of Plymouth, Plymouth PL4 8AA, UKDepartment of Civil and Environmental Engineering, University of Cyprus, Nicosia 1678, CyrpusIfremer Centre Bretagne, Laboratoire Comportement des Structures en Mer, 29280 Plouzané, FranceSchool of Engineering, Computing and Mathematics, University of Plymouth, Plymouth PL4 8AA, UKNewWave-type focused wave groups are commonly used to simulate the design wave for a given sea state. These extreme wave events are challenging to reproduce numerically by the various Numerical Wave Tanks (NWTs), due to the high steepness of the wave group and the occurring wave-wave interactions. For such complex problems, the validation of NWTs against experimental results is vital for confirming the applicability of the models. Intercomparisons among different solvers are also important for selecting the most appropriate model in terms of balancing between accuracy and computational cost. The present study compares three open-source NWTs in OpenFOAM, SWASH and HOS-NWT, with experimental results for limiting breaking focused wave groups. The comparison is performed by analysing the propagation of steep wave groups and their extracted harmonics after employing an accurate focusing methodology. The scope is to investigate the capabilities of the solvers for simulating extreme NewWave-type groups, which can be used as the “design wave” for ocean and coastal engineering applications. The results demonstrate the very good performance of the numerical models and provide valuable insights to the design of the NWTs, while highlighting potential limitations in the reproduction of specific harmonics of the wave group.https://www.mdpi.com/2311-5521/6/1/9extreme wavesfocused wavesdispersionharmonic analysisCFDOpenFOAM |
| spellingShingle | Thomas Vyzikas Dimitris Stagonas Christophe Maisondieu Deborah Greaves Intercomparison of Three Open-Source Numerical Flumes for the Surface Dynamics of Steep Focused Wave Groups Fluids extreme waves focused waves dispersion harmonic analysis CFD OpenFOAM |
| title | Intercomparison of Three Open-Source Numerical Flumes for the Surface Dynamics of Steep Focused Wave Groups |
| title_full | Intercomparison of Three Open-Source Numerical Flumes for the Surface Dynamics of Steep Focused Wave Groups |
| title_fullStr | Intercomparison of Three Open-Source Numerical Flumes for the Surface Dynamics of Steep Focused Wave Groups |
| title_full_unstemmed | Intercomparison of Three Open-Source Numerical Flumes for the Surface Dynamics of Steep Focused Wave Groups |
| title_short | Intercomparison of Three Open-Source Numerical Flumes for the Surface Dynamics of Steep Focused Wave Groups |
| title_sort | intercomparison of three open source numerical flumes for the surface dynamics of steep focused wave groups |
| topic | extreme waves focused waves dispersion harmonic analysis CFD OpenFOAM |
| url | https://www.mdpi.com/2311-5521/6/1/9 |
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